Image displaying apparatus

ABSTRACT

An image displaying apparatus stores plural image data and displays one of the image data, which image data represent a growing plant (animal) or represent a series of motions of an animal. The apparatus further stores plural element data for growing the plant (animal). When one of the element data is selected, another image data of the plant (animal) is displayed in place of the previously displayed imaged data to show how the plant (animal) grew up responsive to the selected element data. The apparatus is provided with a sensor for detecting motion of a user. Detecting the motion of the user, the apparatus displays new image data representing a motion of the animal in place of the previously displayed image data to show how the animal reacts to the user&#39;s motion.

This is a division of application Ser. No. 08/681,702 filed Jul. 29,1996, which is a divisional of application Ser. No. 08/287,850 filedAug. 9, 1994, now U.S. Pat. No. 5,572,646.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an image displaying apparatus used inan electronic appliance which displays previously stored image data inresponse to operation of a key switch or operation of a non-contactswitch.

2. Description of the Related Art

In an image displaying apparatus of a conventional electronic appliancefor displaying an image of a character such as, for example, an animal,the displayed character image is modified or moved on the imagedisplaying apparatus in response to an operation of a particular key.

For example, images of a dog that wags its head may be selectivelydisplayed on the image displaying apparatus by selectively operatingcursor keys (up, down, left and right keys).

However, in the conventional image displaying apparatus, an instructionbased on particular mechanical operation is required to modify or movethe displayed character image. Therefore, the conventional imagedisplaying apparatus inherently has a drawback that the character imagedisplayed thereon can not be moved or modified in accordance with aninstruction given by an user's sense.

SUMMARY OF THE INVENTION

The present invention has been made to overcome the above mentioneddrawback, and has an object to provide an image displaying apparatus, animage of an object displayed on which can be freely modified or moved inaccordance with the user's sense.

According to one aspect of the present invention, there is provided animage displaying apparatus which comprises:

image-data storing means for storing a plurality of image data;

displaying means for displaying at least one of the plurality of imagedata stored in said image-data storing means;

switching means; and

display controlling means for selecting image data other than the imagedata displayed on said displaying means among from the plurality ofimage data stored in said image-data storing means when said switchingmeans is operated, and for displaying the selected image data on saiddisplaying means in place of the previously displayed image data

On the image displaying apparatus with the above mentioned structure,for example, an image of an animal displayed thereon can be moved orchanged by the user with sense as if he is with his pet such as a dog.

It would be apparent to those skilled in the art from the followingdescription of preferred embodiments that the present invention may bemodified in various manners and may be applicable to other apparatus.

BRIEF DESCRIPTION OF THE DRAWINGS

Other objects and structures of the present invention will be more fullyunderstood from the description, when taken in conjunction with theaccompanying drawings, in which:

FIG. 1 is a circuit diagram of a first electronic notebook incorporatinga first embodiment of an image displaying apparatus according to thepresent invention;

FIG. 2 is a view showing image data of elements previously stored in aread only memory (ROM) of the first electronic notebook;

FIG. 3 is a view showing image data of a plant (plant image data)previously stored in the ROM of the first electronic notebook;

FIG. 4 is a view showing registers in a random access memory (RAM) ofthe first electronic notebook;

FIG. 5 is a flowchart of a main process of the first electronicnotebook;

FIG. 6 is a flowchart of a notebook-mode process of the first electronicnotebook;

FIG. 7 is a flowchart of an image-display mode process of the firstelectronic notebook;

FIGS. 8A-8C are views showing indications displayed in the image-displaymode process, in which FIG. 8A is a view showing a displayed indicationillustrating a plant corresponding to a plant address M=1 in theimage-display mode process;

FIG. 8B is a view showing a displayed indication illustratingwater-elements for selecting a water-element;

FIG. 8C is a view showing a displayed indication illustrating a plantcorresponding to a plant address M=2 when a water-element is selected inthe image-display mode process;

FIG. 9 is a circuit diagram of a second electronic notebookincorporating a second embodiment of the image displaying apparatusaccording to the present invention;

FIG. 10 is a view showing image data of plants previously stored in ROMof the second electronic notebook;

FIG. 11 is a view showing registers in RAM of the second electronicnotebook;

FIG. 12 is a flowchart of a main process of the second electronicnotebook;

FIG. 13 is a flowchart of a plant-selecting process in an image-displaymode process of the second electronic notebook;

FIG. 14 is a circuit diagram of a third electronic notebookincorporating a third embodiment of the image displaying apparatusaccording to the present invention;

FIG. 15 is a view showing image data of an object and effect-sound datapreviously stored in ROM of the third electronic notebook;

FIG. 16 is a view showing registers in RAM of the third electronicnotebook;

FIG. 17 is a flowchart of a main process of the third electronicnotebook;

FIG. 18 is a flowchart of a notebook-mode process of the thirdelectronic notebook;

FIG. 19 is a flowchart of an image-display mode process of the thirdelectronic notebook;

FIG. 20 is a flowchart of a light detecting process (performed whenlight is received) in the image-display mode process of the thirdelectronic notebook;

FIG. 21 is a flowchart of a light detecting process (performed when nois light received) in the image-display mode process of the thirdelectronic notebook;

FIG. 22 is a flowchart of an image displaying process in theimage-display mode process;

FIG. 23 is a view showing relationship between non-contact operationpatterns and orders (a user's intention), and motions in theimage-display mode process;

FIG. 24 is a view illustrating motions of a character (dog) shown when a"start" key is operated in the image-display mode process;

FIG. 25 is a view illustrating motions of the character (dog) shown whennon-contact operation of the user is performed within a period of notmore than 0.3 seconds in the image-display mode process;

FIG. 26 is a view illustrating motions of the character (dog) shown whennon-contact operation of the user is performed twice within apredetermined period in the image-display mode process;

FIG. 27 is a circuit diagram of a fourth electronic notebookincorporating a fourth embodiment of the image displaying apparatusaccording to the present invention;

FIG. 28 is a view showing image data of a character (dog) andsound-effect data previously stored in ROM of the fourth electronicnotebook;

FIG. 29 is a view showing registers in RAM of the fourth electronicnotebook;

FIG. 30 is a flowchart of an image-display mode process of the fourthelectronic notebook;

FIG. 31 is a flowchart of an image-display process in the image-displaymode process of the fourth electronic notebook;

FIG. 32 is a view illustrating initial motions of a character (dog) inthe image-display mode process;

FIG. 33 is a view illustrating indications corresponding to a ROMaddress "M=3" in an order setting mode in the image-display modeprocess;

FIG. 34 is a view illustrating motions of the character (dog) shown inresponse to an order given by non-contact operation of the user in theimage-display mode process; and

FIG. 35 is a flowchart of a pass-word mode process performed immediatelyafter power supply is turned on.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Now, preferred embodiments of the present invention will be described indetail with reference to the accompanying drawings.

First Embodiment

FIG. 1 is a circuit diagram of a first electronic notebook incorporatinga first embodiment of the image displaying apparatus according to thepresent invention.

The first electronic notebook is provided with a central processing unit(CPU) 11.

The CPU 11 is driven by a key input signal supplied from a key inputunit 12 to control operations of peripheral circuits in accordance witha system program stored in a read only memory (ROM) 13. The CPU 11 isconnected with the key input unit 12, the ROM 13, a random access memory(RAM) 14, a display driving circuit 15 and a liquid crystal display unit(LCD unit or display unit) 16 through the display driving circuit 15.

The key input unit 12 is installed with letter keys 12a, ten keys 12b, amode key 12c, a search key 12d and a write key 12e. The letter keys 12aare operated to input "names" etc. The ten keys 12b are used to input"phone numbers" and numerals to designate data to be searched. The modekey 12c is operated to set a notebook mode and/or an image display mode.The search key 12d is operated to search and display data throughnotebook data registered in the RAM 14 in the notebook mode and tosearch and display plural sorts of element data through element data(water, light and manure for raising plants) previously registered inthe ROM 13 in the image display mode. The write key 12e is used in thenotebook mode to register notebook data input by operation of the letterkeys 12a and ten keys 12b in the RAM 14, and further is used in theimage display mode to give a plant the element searched and displayed byoperation of the search key 12d by amount specified by numerals input bythe ten keys 12b.

In the ROM 13 are previously stored the system program for the CPU 11 toperform a control operation, image data representative of elements forraising plants and plural image data of a plant which illustrate how theplant grows.

FIG. 2 is a view showing image data representative of elementspreviously stored in the ROM 13 of the first electronic notebook. Morespecifically, in the ROM 13 are stored bit map data representing threesorts of plant growing elements such as water, light and manure, each ofthe plant growing elements (water element, light element and manureelement) corresponding to four amounts represented by (1) NO, (2) ALITTLE, (3) AVERAGE and (4) MUCH, as shown in FIG. 2.

FIG. 3 is a view showing image data of a plant (plant image data)previously stored in the ROM 13 of the first electronic notebook. Theplant image data are stored as bit map data in the ROM 13. The plantimage data represent a growing course (six stages) of a plant, andcorrespond respectively to addresses "M=0, 1, . . . and 5". (Each plantimage data represents one stage of the growing plant in the growingcourse.) FIG. 4 is a view showing a structure of registers in the RAM 14of the first electronic notebook. The RAM 14 comprises a notebook dataregister 14a, a display register 14b, a mode flag register N, aplant-address register M, a water register 14c, a light register 14d anda manure register 14e. Personal data (notebook data) for a predeterminednumber of person including names and phone numbers are registered atareas designated by a pointer P in the notebook data register 14a.Display data to be displayed on the LCD unit 16 is written as image datain the display register 14b. The mode flag register N is set to a value"0" in the notebook mode, and to a value "1" in the image display mode.The plant address register M represents addresses ("M=0, 1, . . . and5") in the ROM 13 indicating areas where the plant image data (FIG. 3)are stored. Numeral data representing amounts of respective elements(water, light and manure), which are set by operation of the write key12e in the image display mode, are stored in the water register 14c,light register 14d and the manure register 14e, respectively.

On the LCD unit 16, either notebook data input by operation of theletter keys 12a and the ten keys 12b or notebook data searched throughthe notebook data register 14a of the RAM 14 in response to operation ofthe search key 12d is displayed in the notebook mode.

In the image display mode, either element data of the respectiveelements read out from the ROM 13 in response to operation the searchkey 12d or plant image data read out from the area in the ROM 13designated by the plant address register M of the RAM 14 is displayed onthe LCD unit 16.

In the plant address register M of the RAM 14 is set one of the plantaddresses, "M 0, 1, 2, . . . and 5", each corresponding to a growingrate of the plant, which growing rate is designated by the amounts ofelements (water element, light element and manure element) that are setin the water register 14c, the light register 14d and the manureregister 14e by operation of the write key 12e in the image displaymode.

Now, operation of the first electronic notebook with the above mentionstructure will be described in detail.

FIG. 5 is a flowchart of a main process of the first electronicnotebook.

In the case that a value "0" has been set to the mode flag register N ofthe RAM 14 when the mode key 12c of the key input unit 12 is operated,i.e., in the case that the CPU 11 has been set to the notebook mode, themode flag register N is set to a value "1" and the CPU 11 is switched tothe image display mode (steps S1, S2, and S3 in the flowchart of FIG.5).

In the case that a value "1" has been set to the mode flag register N ofthe RAM 14 when the mode key 12c is operated, i.e., in the case that theCPU 11 has been set to the image display mode, the mode flag register Nis set to a value "0" and the CPU 11 is switched to the notebook mode(steps S1, S2, and S4).

In the notebook mode where a value "0" has been set to the mode flagregister N, the CPU 11 performs the notebook mode process (steps S5, SA,FIG. 6).

In the image display mode where a value "1" has been set to the modeflag register N, the CPU 11 performs the image-display mode process(steps S5, SB, FIG. 7).

FIG. 6 is a flowchart of the notebook-mode process in the firstelectronic notebook.

In the notebook mode where a value "0" has been set to the mode flagregister N of the RAM 14, when notebook data such as a "name" and A"phone number" are entered by operation of the letter keys 12a and theten keys 12b of the key input unit 12, the CPU 11 drives the displaydriving circuit 15 to display the entered notebook data on the LCD unit16 (steps A1, A2 and A3 of the flowchart shown in FIG. 6).

Further, when the write key 12e of the key input unit 12 is operated,the notebook data that are displayed on the LCD unit 16 are registeredin the notebook data register 14a of the RAM 14 (steps A4, A5).

When the search key 12d is operated, the notebook data pointer P of theRAM is incremented every operation of the search key 12d, and the CPU 11searches for notebook data through the notebook data register 14a anddrives the display driving circuit to display searched notebook data onthe LCD unit 16 (steps A6, A7 and A3).

FIG. 7 is a flowchart of the image-display mode process in the firstelectronic notebook.

FIGS. 8A-8C are views showing indications displayed on the LCD unit 16in the image-display mode process. FIG. 8A is a view showing anindication of a plant corresponding to a plant address M=1 in theimage-display mode process. FIG. 8B is a view showing an indicationillustrating water-elements for selecting a water-element. FIG. 8C is aview showing an indication illustrating the plant corresponding to aplant address M=2 when a water-element is selected in the image-displaymode process.

In the case that, for example, a value "1" has been set to the plantaddress register M in the RAM 14 in the image-display mode process ofFIG. 7, the CPU 11 reads out and displays on the display unit 16 plantimage data of a second growing stage corresponding to the plant address"M=1" from the ROM 13 as shown in FIG. 8A (step B1 of FIG. 7).

When the search key 12d is operated to determine amounts of water to besupplied or fed to a plant represented by the plant image data of thesecond growing stage displayed on the display unit 16 (FIG. 8B), the CPU11 reads out and displays image data of the water element (water imagedata) corresponding to four amounts, (1) NO, (2) A LITTLE, (3) AVERAGEand (4) MUCH (FIG. 2) on the LCD unit 16 (steps B2, B3).

When, for example, water element of amount (3) AVERAGE is selected onthe LCD unit 16 by operation of the ten keys 12b, numeral data "3"corresponding to the selected water element of amount (3) AVERAGE is setto the water register 14c in the RAM 14 (step B4).

On the LCD unit 16, image data of the light element (light image data)corresponding to four amounts, (1) NO, (2) A LITTLE, (3) AVERAGE and (4)MUCH (FIG. 2) are displayed in place of the water element data. When,for example, light element of amount (3) AVERAGE is selected on the LCDunit 16 by operation of the ten keys 12b, numeral data "3" correspondingto the selected light element of amount (3) AVERAGE is set to the lightregister 14d (steps B5, B3 and B4).

On the LCD unit 16, image data of the manure element (manure image data)corresponding to four amounts, (1) NO, (2) A LITTLE, (3) AVERAGE and (4)MUCH (FIG. 2) are displayed in place of the light element data. When,for example, manure element of amount (3) AVERAGE is selected on the LCDunit 16 by operation of the ten keys 12b, numeral data "3" correspondingto the selected manure element of amount (3) AVERAGE is set to the lightregister 14e (steps B5, B3 and B4).

When the write key 12e is operated to supply the plant of the secondgrowing stage shown on the LCD unit 16 with the selected amounts ofwater, light and manure, the CPU 11 searches for numeral data throughthe registers 14c-14d, and determines whether the searched, i.e.,selected numeral data of water, light and manure elements are equivalentto one another (steps B5, B6).

Since the amount (3) AVERAGE is selected for the water, light and manureelements, the CPU determines "YES", and further determines whether thenumeral data is (3) AVERAGE or (4) MUCH (steps B6, B7).

In other words, the CPU 11 determines whether the three elements are fedenough to the plant in well balanced state (steps B6, B7). Since theamount (3) AVERAGE has been selected for all the water, light and manureelements, the CPU determines "YES" in step B7, and further searchesthrough the plant address register M of the RAM 14 to determine whetherthe plant address corresponding to the present growing stage of theplant is "M=4" or "M=5", that is, determines whether the plant is in themost growing stage (fifth growing stage) or in the final stage (sixthgrowing stage) in the growing course (steps B7, B8).

Since "M =1" is set to the plant address register M in the RAM 14, andthe plant is in the second growing stage at present, the CPU 11determines "NO" in step B8, and the plant address register is renewedfrom "M=1" (second growing stage) to "M=2" (third growing stage) (stepsB8, B9).

Then, the CPU 11 reads out and displays plant image data of the thirdgrowing stage (FIG. 3) corresponding to the renewed plant address "M=2"on the LCD unit 16 as shown in FIG. 8C (step B10).

When the plant is in the first ("M=0") to fourth growing stages ("M=3")and elements (water, light and manure) are fed enough to the plant, theplant address is incremented by "+1" and thereby-the plant image data ofthe following growing stage is displayed.

Even though the CPU determines "YES" in steps B6 and B7, i.e.,determines that water, light and manure elements are fed enough to theplant in well balance state, the plant address M is set to "0" when theCPU 11 determines "YES" in step B8, i.e., determines that the plant isin the fifth growing stage ("M=4") or in the sixth growing stage("M=5"). Therefore, the plant of the first growing stage ("M=0") (FIG.3) is displayed on the display unit 16 (steps B8, B11 and B10).

Even though the CPU determines "YES" in steps B6 and B7, i.e.,determines that water, light and manure elements are fed to the plant inwell balance state, the plant address M is not renewed when the CPU 11determines "NO" in step B7, i.e., determines that numeral data of theselected amount (1) NO or (2) A LITTLE is not enough. Therefore, theplant of the second growing stage ("M=1") displayed in step B1 is keptdisplayed on the display unit 16 (steps B7 to B10)(, which indicatesthat the plant does not grow).

Meanwhile, when the CPU determines "NO" in step B6, i.e., determinesthat water, light and manure elements are not fed to the plant in wellbalance state, and further when the CPU 11 determines "NO" in step B12,i.e., determines that amounts, (1) NO and (4) MUCH are selected, andthat water, light and manure elements are not fed to the plant in wellbalance state, the CPU 11 determines whether the present plant address Mis "0" in step 13. When the CPU 11 determines "M=0", the plant of thefirst growing stage ("M=0") displayed in step B1 is kept displayed onthe display unit 16 (steps B12, B13 and B10)(, which indicates that theplant does not grow).

Further, when the CPU determines "YES" in step B12, i.e., determinesthat amounts, (1) No and (4) MUCH are selected, and that water, lightand manure elements are fed to the plant in extremely unbalanced state,and further when the CPU 11 determines "NO" in step B13, i.e.,determines that the present plant address M is in the range of "M=1"(the second growing stage) and "M=4" (the fifth growing stage), theplant address M is set to "5" (the sixth growing stage) and the plant ofthe sixth growing stage (final growing stage, withering plant, FIG. 3)is displayed on the display unit 16 (steps B12, B13, B14 and B10).

When, in step B12, the CPU determines "NO", i.e., determines that water,light and manure elements are fed to the plant in well balanced state,the plant address M is not renewed and the plant displayed in step B1 iskept displayed on the display unit 16 (the plant does not grow)(stepsB12, B10).

In the first electronic notebook with the above mentioned structure, oneof the plant image data corresponding to the first (M=0) to sixthgrowing stages (M=5) is read out from the ROM 13 and is displayed on theLCD unit 16. Further, image data representing the plant growing elements(water, light and manure) are read out from the ROM 13 and aredisplayed. When amounts are selected for the water, light and manureelements respectively by setting numerals by means of the key input unit12, the selected amounts are set in the water register 14c, the lightregister 14d and the manure register 14e respectively. When the plant ofthe selected growing stage displayed on the display unit 16 is fed withthe plant growing elements of the selected amounts, a plant of renewedgrowing stage is read out from the ROM 13 and is displayed in place ofthe previously displayed plant. Therefore, the user can not only reviewthe growing stages of the plant on the display unit 16 but also he (orshe) can confirm, as if he actually grows the plant, how the plant growswhen some amounts of the plant growing elements are fed to the plant. Inthis way, using the first electronic notebook, the user can learn how toglow a plant even if he does not actually grow the plant.

Second Embodiment

Now, the second embodiment of the present invention will be described.

FIG. 9 is a circuit diagram of a second electronic notebookincorporating the second embodiment of the image displaying apparatusaccording to the present invention.

The second electronic notebook is provided with a central processingunit (CPU) 21.

The CPU 21 is driven by a key input signal supplied from a key inputunit 22 to control operations of peripheral circuits in accordance witha system program stored in a read only memory (ROM) 23. The CPU 21 isconnected with the key input unit 22, the ROM 23, a random access memory(RAM) 24, a timer 21a including an oscillator circuit 21b and afrequency dividing circuit 21c, a display driving circuit 25 and aliquid crystal display unit (LCD unit or display unit) 26 through thedisplay driving circuit 25.

The CPU 21 is connected with a temperature sensor 28 and an illuminationsensor 29 through a sensor control unit 27.

The key input unit 22 is installed with letter/ten keys 22a, a mode key22b, a write key 22c, a search key 22d and a selection key 22e. Theletter/ten keys 22a are operated to input "names" and "phone numbers" tobe registered as notebook data. The mode key 22b is operated to set anotebook mode and/or an image display mode. The write key 22c is used toregister notebook data input by operation of the letter/ten keys 22a inthe RAM 24. The search key 22d is operated to search and display datathrough notebook data registered in the RAM 24. The selection key 22e isoperated to select a sort of plants (a tulip, "T=0" and wheat, "T=1").

In the ROM 23 are previously stored the system program for the CPU 11 toperform a control operation and a plurality of plant image datarepresentative of growing stages of two plants (tulip and wheat).

FIG. 10 is a view showing plant image data previously stored in the ROM23 of the second electronic notebook. More specifically, the plant imagedata are bit map data stored in the ROM 23, which represent the twosorts of plants (tulip: "T=0" and wheat: "T=1") in 21 growing stages(corresponding to addresses "M=1" to "M=21") in a growing course.

FIG. 11 is a view showing a structure of registers in the RAM 24 of thesecond electronic notebook. The RAM 24 comprises a notebook dataregister 24a, a display register 24b, a time counting register 24c, amode flag register N, a plant-address register M, a sort register T, atemperature register 24d, an illumination register 24e. The notebookdata register 14a stores personal data (notebook data) for thepredetermined number of persons including names and phone numbers atareas designated by a pointer P. Display data to be displayed on the LCDunit 26 is written as image data in the display register 24b. Timecounting data corresponding to a time counting signal sent from thetimer 21a are successively renewed and set to the-time counting register24c. The mode flag register N is set to a value "0" in the notebookmode, and to a value "1" in the image display mode. The plant addressregister M indicates addresses ("M=0, 1, . . . and 5") in the ROM 23representing areas where the plant image data (FIG. 10) are stored. Thesort register T indicates a sort of plants image data (FIG. 10).Environmental temperatures which are detected by the temperature sensor28 every hour based on time counting data set in the time countingregister 24c are successively accumulated in the temperature register24d. Environmental illuminations which are detected every hour by theillumination sensor 29 are successively accumulated in the illuminationregister 24e.

On the LCD unit 26, either notebook data input by operation of theletter/ten keys 22a or notebook data searched through the notebook dataregister 24a of the RAM 24 in response to operation of the search key22d is displayed in the notebook mode.

In the image display mode, plant image data of a tulip or wheat in oneof the growing stages, which data is read out from the ROM 23 inaccordance with a plant address indicated by the plant address registerM and a sort indicated by the sort register T, is displayed on the LCDunit 26.

In the plant address register M of the RAM 24 is set one of the plantaddresses, "M=0, 1, 2, . . . and 21", corresponding to a growing rate ofthe plants, which growing rate is designated based on temperatureaccumulated value set in the temperature register 24d and theillumination accumulated value set in the illumination register 24e,when it is determined based on the time counting data set in the timecounting register 24c that 24 hours have lapsed.

The timer 21a sends a time counting signal to the CPU 21 all the time toreset the time data in the time counting register 24c of the RAM 24. Thetemperature accumulated value set in the temperature register 24d andthe illumination accumulated value set in the illumination register 24eare cleared every 24 hours based on the time counting data set in thetime counting register 24c.

Now, operation of the second electronic notebook with the abovementioned structure will be described in detail.

FIG. 12 is a flowchart of a main process of the second electronicnotebook.

FIG. 13 is a flowchart of a plant-selecting process in an image-displaymode process of the second electronic notebook.

In the case that a value "0" has been set to the mode flag register N ofthe RAM 24 when the mode key 22b of the key input unit 22 is operated,i.e., in the case that the CPU 21 has been set to the notebook mode, avalue "1" is set to the mode flag register N and the CPU 21 is switchedto the image display mode (steps X1, X2, X3, X4 of FIG. 12).

In the case that a value "1" has been set to the mode flag register N ofthe RAM 24 when the mode key 22b is operated, i.e., in the case that theCPU 21 has been set to the image display mode, the mode flag register Nis set to a value "0" and the CPU 21 is switched to the notebook mode(steps X1, X2, X3, X5).

In the notebook mode where a value "0" has been set to the mode flagregister N of the RAM 24, the CPU 21 performs the notebook mode process(steps X6, XA of FIG. 12, FIG. 6).

In the image display mode where a value "1" has been set to the modeflag register N, the CPU 21 performs the image-display mode process(steps X6, XC of FIG. 12, FIG. 13).

In the image display mode where a value "1" has been set to the modeflag register N in the RAM 24, a plant image data (tulip or wheat) isread out from the ROM 23 and displayed on the display unit 26 inaccordance with a plant address indicated by the plant address registerM and a sort of plants indicated by the sort register T (steps X7, X8).

Meanwhile, a time counting pulse signal is supplied to the CPU 21 fromthe timer 21a to renew a time counting data set in the time countingregister 24c of the RAM 24. It is judged based on the time counting dataset in the time counting register 24c every time the time counting datais renewed, whether one hour period has lapsed. As long as it isdetermined "NO", the operation advances to step X7, where, in the imagedisplay mode, the plant image data (tulip or wheat) are successivelyread out from the ROM 23 and displayed on the display unit 26 inaccordance with the plant addresses indicated by the plant addressregister M and a sort of plants indicated by the sort register T (stepsX1 to X9, X10 to X7 to X8).

When the time counting data set in the time counting register 24c isrenewed by the time counting pulse signal transferred from the timer21a, and when it is determined at step X10 that one hour period haslapsed, an environmental temperature and an environmental illuminationare detected by the temperature sensor 28 and the illumination sensor29, respectively. The detected environmental temperature andenvironmental illumination are measured by the CPU 21 through the sensorcontrol unit 27, and are stored in the temperature register 24d and theillumination register 24e, respectively (steps X10, X11, X12 and X13).

At step X14, it is judged based on the time counting data set in thetime counting register 24c whether a twenty-four hour period has lapsed.When it is determined "NO", the operation advances to step X7, where, inthe image display mode, the plant image data (tulip or wheat) aresuccessively read out from the ROM 23 and displayed on the display unit26 in accordance with the plant addresses indicated by the plant addressregister M and a sort of plants indicated by the sort register T (stepsX14, X7, X8).

More specifically, every time it is determined at step X10 that one hourperiod has lapsed, an environmental temperature and an environmentalillumination are measured accumulated in the temperature register 24dand the illumination register 24e, respectively. Thereafter, when it isdetermined, at step X14, based on the time counting data set in the timecounting register 24c that twenty four hours have lapsed, it is judgedwhether the temperature accumulated in twenty four hours and stored inthe temperature register 24d and the illumination accumulated in twentyfour hours and stored in the illumination register 24e exceed certainvalues, respectively (steps X14, X15).

When it is determined at step X15 that the temperature and illuminationaccumulated in twenty four hours exceed the certain values which arenecessary for the plant to grow, it is judged at step X16 whether theplant address M of the plant address register M has been set to "20" or"21".

In other words, it is judged at step X16 whether the plant is in atwentieth growing stage or in a twenty-first growing stage, the plantimage data of which plant is read out from the ROM 23 in accordance withthe plant address M and is displayed on the display unit 26. In thepresent embodiment, a plant in the twentieth growing stage or in thetwenty-first growing stage seems to stop growing. For example, when theplant address M is "2" and it is determined "NO" at step X16, the plantaddress M is incremented to "3" (steps X16, X17).

Then, when the image display mode is set after the accumulatedtemperature in the temperature register 24d and the accumulatedillumination in the illumination register 24e are cleared, the plantimage data (FIG. 10) of the plant (tulip or wheat) designated by thesort register T and of the third growing stage corresponding to theplant address "M=3" of the plant address register M is read out anddisplayed on the display unit 26 in place of the previously displayedimage (steps X20, X7, X8).

More specifically, when the temperature and illumination accumulated intwenty four hours reach certain values, respectively, which arenecessary for the plant to grow, and when the selected plant addressfalls within a range of "M=1" to "M=19" (that is, in a plant growingrange), the plant address M is incremented by "+1", whereby the plantimage data of the next growing stage is displayed on the display unit26.

When it is determined at step X15 that the temperature and illuminationaccumulated in twenty four hours exceed the certain values which arenecessary for the plant to grow, and further when it is determined atstep X16 that the plant address M of the plant address register M hasbeen set to "20" or "21", the plant address M is set to "1", and theplant image data (of tulip or wheat) of the first growing rate isdisplayed on the display unit 26 in place of the previously displayedimage. (steps X16, X18, X20, and steps X7, X8).

When it is determined at step X15 that the temperature and illuminationaccumulated in twenty four hours do not reach the certain values whichare necessary for the plant to grow, the plant address M is set to "21"(the twenty-first growing rate) and the plant image data (withered-plantimage data) of the plant (tulip or wheat) is displayed on the displayunit 26 in place of the image previously displayed thereon (steps X15 toX19, X20, X7, X8).

Meanwhile, when the selection key 22e on the key input unit 22 isoperated in the image display mode, in which the mode flag register N isset to "1" and the plant image data of the plant designated by the sortregister T is read out from the ROM 23 in accordance with the plantaddress set in the plant address register M and is displayed on thedisplay unit 26, the CPU 21 starts a image display mode process (FIG.13). in the image display mode.

More specifically, when a value "0" is set to the sort register T of theRAM 24, i.e., when a "tulip" is selected or designated, a value "1" isset to the sort register T and the plant is switched to "wheat" (stepsC1, C2, C3 of FIG. 13).

When a value "1" is set to the sort register T of the RAM 24 at the timethe selection key 22e is operated, i.e., when a "wheat" is selected ordesignated, a value "t" is set to the sort register T and the plant isswitched to "tulip" (steps C1, C2, C4 of FIG. 13).

In either case that the plant is switched from the "tulip" to the"wheat" or case that the plant is switched from the "wheat" to the"tulip", the plant address M is set to a value "1", which represents aninitial growing rate (step C5).

In the second electronic notebook with the above mentioned structure,plant image data of each of the plan its, which correspond respectivelyto the first growing rate "M=1" to the twenty-first growing rate "M=21",are previously stored in the ROM 23, and one of the plant image data ofone of the plants is read out from the ROM 23 and displayed on the LCDunit 26. Meanwhile, time counting data registered in the RAM 24 isupdated by the time counting pulse signal sent from the timer 21a andthe CPU 21 judges it based on the updated time counting data, whether anone-hour period has lapsed. Environmental temperature and illuminationare detected by the temperature sensor 28 and the illumination sensor29, respectively, every time an one-hour period has lapsed, and thedetected temperatures and illuminations are accumulated in thetemperature register 24d and the illumination register 24e,respectively. When twenty four hours have lapsed, the CPU 21 judgeswhether the accumulated temperature and illumination exceed thepredetermined values respectively. Then, another plant image data of theplant corresponding to another growing rate is read out from the ROM 23depending on the result of the judgement by the CPU 21 and the growingrate of the previously displayed plant image data, and the read outplant image data is newly displayed on the LCD unit 26. Therefore, theuser can observe the growing course of the plant on the LCD unit 26, andcan make it displayed on the LCD unit 26 how the growing course of theplant is affected by the environmental conditions. As a result, even ifthe user does not grow a plant actually, he (or she) can learn how theplant grows under various environmental conditions.

In the second embodiment, plant image data of a new growing rate isselected among from those stored in the ROM 23 depending on thetemperature and illumination accumulated in a twenty-four hour period,but this period may be arbitrarily selected.

Further, in the second embodiment, the temperature sensor 28 and theillumination sensor 29 are used to detect environmental conditions, butother sensor such as a humidity sensor may be employed in addition tothe above two sensors to detect more actual environmental conditions forgrowing a plant.

A device with such a structure as determining a growing rate of a plantdepending on combination of the plant growing elements (water, light,manure) of the first embodiment and the environmental conditions(temperature, illumination) of the second embodiment will allow the userto watch how the plant grows under environmental conditions which aremore similar to natural conditions.

In the above embodiments, plants are selected as an object to beobserved but animals such as a cat and a dog may be selected.

Third Embodiment

Now, a third embodiment of the present invention will be described withreference to the drawings.

FIG. 14 is a circuit diagram of the third electronic notebookincorporating a switching device according to the present invention.

The third electronic notebook is provided with a central processing unit(CPU) 31.

The CPU 31 is driven by a key input signal supplied from a key inputunit 32 to control operations of peripheral circuits in accordance witha system program stored in a read only memory (ROM) 33. The CPU 31 isconnected with the key input unit 32, the ROM 33, a transferring unit34, a receiving unit 35 and a random access memory (RAM) 36.

Further, the CPU 31 is connected with a timer 31a including anoscillator circuit 31b and a frequency dividing circuit 31c, a displaydriving circuit 37, a liquid crystal display unit (LCD unit or displayunit) 38 through the display driving circuit 37, an amplifier circuit 39and a speaker 40 through the amplifier circuit 39.

The key input unit 32 is installed with letter/ten keys 32a, a mode key32b, a start key 32c, an end key 32d, a receiving key 32e, a write key32f and a search key 32g. The letter/ten keys 32a are used to input"names" and "phone numbers" to be registered as notebook data. The modekey 32b is operated to set a notebook mode and/or an image display mode.The start key 32c is operated to start transferring notebook data toother electronic appliance in the notebook mode and is operated to sendan infrared light in the image display mode. The end key 32d is operatedto stop receiving notebook data from other electronic appliance in thenotebook mode and is operated to stop sending the infrared light in theimage display mode. The receiving key 32e is operated to receivenotebook data sent from other electronic appliance in the notebook mode.The write key 32f is used to register in the RAM 36 notebook data inputby operation of the letter/ten keys 32a and notebook data sent fromother electronic appliance. The search key 32g is operated to search anddisplay data through notebook data registered in the RAM 36.

In the ROM 33 are previously stored the system program for the CPU 31 toperform a control operation, a plurality of image data, and effect-sounddata corresponding respectively to the image data.

FIG. 15 is a view showing image data of an object and effect-sound datapreviously stored in the ROM 33 of the third electronic notebook.

Six combination data ((1), (2)), each including two image data of a dogin a bit map format, and corresponding effect-sound data (PCM data) arestored at corresponding addresses "M=1 to 5" in the ROM 33,respectively.

The transferring unit 34 is provided with a transferring circuit 34a anda light emitting element 34b, which emits the infrared light in responseto a transfer data sent from the CPU 31. When the start key 32c isoperated in the notebook mode, the infrared light emitted by the lightemitting element 34b is modulated by means of the transferring circuit34a in accordance with the notebook data input and displayed on thedisplay unit 38 by operation of the letter/ten keys 32a and/or notebookdata searched and displayed by operation of the search key 32g, and themodulated infrared light is transferred as infrared light data from thetransferring unit 34.

In the image display mode, an infrared light of a predeterminedfrequency is transferred through the transferring circuit 34a and thelight emitting element 34b in response to an instruction of the CPU 31.

The receiving unit 35 is provided with a receiving circuit 35a and alight receiving element 35b for receiving an infrared light dataexternally supplied thereto. When the receiving key 32e is operated inthe notebook mode, notebook data sent from an external electronicappliance is received and demodulated by the receiving circuit 35a andthe light receiving element 35b. The demodulated data is displayed onthe liquid crystal display means 38.

In the image display mode, an externally supplied infrared light isreceived by the light receiving element 35b, and the received infraredlight is transmitted to the CPU 31 through the receiving circuit 35a.

FIG. 16 is a view showing registers in the RAM 36 of the thirdelectronic notebook.

The RAM 36 comprises a notebook data register 36a, a display register36b, a two-second timer register T0, a receiving timer register T1, adisplay timer register T2, a mode flag register N, a ROM-addressregister M, a receiving flag register F0, a light emitting flag registerF1, an object designating register H, a light receiving flag register S,and a number-of-receiving-time register G. The notebook data register36a stores personal data (notebook data) for the predetermined number ofpersons including names and phone numbers at areas designated by apointer P. Display data to be displayed on the LCD unit 38 is written asimage data in the display register 36b. The two-second timer register T0serves to define a time duration based on a timer signal from the timer31a, during which the transferring unit 34 emits the infrared light inthe image display mode. An infrared light receiving time duration isrenewed and set to the receiving timer register T1 based on the timersignal from the timer 31a, during which time duration the infrared lightis received. The display timer register T2 defines a switching timebased on the timer signal from the timer 31a, at which time a displayedimage data is switched in the image display mode. The mode flag registerN is set to a value "0" in the notebook mode, and to a value "1" in theimage display mode. The ROM address register M indicates addresses inthe ROM 23 where the image data and the effect-sound data are stored.The receiving flag register F0 is set to a value "1" while notebook datais received in the notebook mode. The light emitting flag register F1 isset to a value "1" while the infrared light is emitted in the imagedisplay mode. The object designating register H is alternatively set to"0" and "1" every switching time (every two seconds) defined by thedisplay timer register T2, thereby alternatively designating image data(1) and (2) indicated by the ROM address register M. The light receivingflag register S is set to a value "1" when the receiving unit 35 startsreceiving an infrared light in the image display mode, and is set to avalue "0" when the unit 35 stops receiving the infrared light. Thenumber-of-receiving-time register G is incremented by "+1" every timethe infrared light is received in the image display mode.

On the LCD unit 38, any one of notebook data input by operation of theletter/ten keys 32a, notebook data searched through the notebook dataregister 36a of the RAM 36 in response to operation of the search key32g and notebook data received through the receiving unit 35 in responseto operation of the receiving key 32e is displayed in the notebook mode.

In the image display mode, image data (1), (2), which are included in atleast one combination data read out from the ROM 33 in accordance with aROM address indicated by the ROM address register M of the RAM 36, arealternatively displayed on the LCD unit 38 every two seconds based onthe designation by the object designating register H.

Further, an effect sound is output through the speaker 40, based oneffect-sound data which are read out from the ROM 33 in accordance witha ROM address indicated by the ROM address register M.

The timer 31a supplies the CPU 31 with a timer signal of 32 Hz. A timecounting data is added to the two-second timer register T0, thereceiving timer register T1 and the display timer register T2 inresponse to the timer signal of 32 Hz. For example, these registerscount 1 sec. when T=32 and 2 sec. when T=64.

The two-second timer register T0 and the receiving timer register T1 arecleared to start counting operation again, when the transferring unit 34sends the infrared light by operation of the start key 32c in the imagedisplay mode and the receiving unit 35 receives a reflected infraredlight. When the time counting data written in the two-second register T0exceeds 2 seconds, the transferring unit 34 stops sending the infraredlight.

The transferring unit 34 sends or emits the infrared light only for aperiod of 2 seconds after the receiving unit 35 receives the reflectedinfrared light form the transferring unit 34, whereby unnecessary powerconsumption may be avoided or minimized. The number-of-receiving-timeregister G is incremented by "+1" in accordance with the number of timesthe receiving unit 35 receives the infrared light in the period of 2seconds in response to non-contact operation by the user.

When time counting data which is read out from the receiving timerregister T1 at the time when the receiving unit 35 stops receiving theinfrared light, i.e., a time length during which the receiving unit 35receives the infrared light continuously is not less than 0.3 secondsbut not more than 1 second, a value "2" is set to the ROM addressregister M. When the time counting data is not less than 1 second, avalue "3" is set to the ROM address register M.

When time counting data read out from the receiving timer register T1,i.e., a time length during which the receiving unit 35 receives theinfrared light continuously is, for example, less than 0.3 seconds, and"1" has been set to the number-of-receiving-time register G when thetime counting data of the two-second timer register T0 exceeds 2seconds, a value "1" is set to the ROM address register M. And when avalue "2" has been set to the number-of-receiving-time register G whenthe time counting data of the two-second timer register T0 exceeds 2seconds, a value "4" is set to the ROM address register M. Further, whena value of not less than "3" has been set to thenumber-of-receiving-time register G, a value "5" is set to the ROMaddress register M.

That is, an address is set to the ROM address register M, which addressis determined in accordance with a time duration and the number of timesof the non-contacting operation performed by the user while thereceiving unit 35 receives the infrared light.

Now, operation of the third electronic notebook with the above mentionedstructure will be described.

FIG. 17 is a flowchart of a main process of the third electronicnotebook.

In the case that a value "0" has been set to the mode flag register N ofthe RAM 36 when the mode key 32b of the key input unit 32 is operated,i.e., in the case that the CPU 31 has been set to the notebook mode, themode flag register N is set to a value "1" and the CPU 31 is switched tothe image display mode (steps W1, W2, W3 of in the flowchart of FIG.17).

When the CPU 31 has been set to the image display mode, a value "0" isset to the ROM address register M (step W4).

In the case that a value "1" has been set to the mode flag register N ofthe RAM 36 when the mode key 32b is operated, i.e., in the case that theCPU 31 has been set to the image display mode, the mode flag register Nis set to a value "0" and the CPU 31 is switched to the notebook mode(steps W1, W2, W5).

In the notebook mode where a value "0" has been set to the mode flagregister N of the RAM 36, the CPU 31 performs the notebook mode process(steps W6, WA of FIG. 17, FIG. 18).

In the image display mode where a value "1" has been set to the modeflag register N, the CPU 31 performs the image-display mode process(steps W6, WB of FIG. 17, FIGS. 19-26).

The notebook-mode process will be described with reference to FIG. 18,which is a flowchart of the notebook-mode process of the thirdelectronic notebook.

In the notebook mode, where a value "0" is set to the mode flag registerN of the RAM 36, when notebook data such as "name", and "phone number"are entered by operation of the letter/ten keys 32a of the key inputunit 32, the entered notebook data are successively displayed on the LCDunit 38 through the CPU 31 and the display driving circuit 37 (steps D1,D2, D3 of FIG. 18).

When the write key 32f of the key input unit 32 is operated, thenotebook data which is displayed on the LCD unit 38 at present isregistered in the notebook data register 36a of the RAM 36 (steps D4,D5).

Every operation of the search key 32gof the key input unit 32 incrementsthe notebook-data pointer P of the RAM 36. Then, the CPU 31 successivelysearches for notebook data of a predetermined number of persons throughthe notebook-data register 36a, and displays the searched data on theLCD unit 38 through the display driving circuit 37 (steps D6, D7, D3).

Operation of the start key 32c of the key input unit 32 makes thetransferring circuit 34a of the transferring unit 34 modulate theinfrared light of the light emitting element 34b with the notebook datawhich is displayed-on the LCD unit 38 at present. The modulated infraredlight is output from the transferring unit 34 as infrared light data(steps D8, D9).

Operation of the receiving key 32e of the key input unit 32 sets a value"1" to the receiving flag register F0 of the RAM 36. Then, the receivingunit 35 receives infrared light data from an external electronicappliance, and the CPU 31 displays the received infrared light data onthe display unit 38 through the display driving circuit 37 (steps D10,D11, D12, D3).

Operation of the end key 32d of the key input unit 32 sets a value "0"to the receiving flag register F0 of the RAM 36. Then, the receivingunit 35 stops receiving the infrared light data transferred from theexternal electronic appliance (steps D13, D14, D15).

The image-display mode process will be described with reference to FIG.19, which is a flowchart of the image-display mode process of the thirdelectronic notebook.

In the image display mode, operation of the start key 32c of the keyinput unit 32 sets a value "1" to the light emitting flag register F1 ofthe RAM 36. Then, the light emitting element 34b of the transferringunit 34 start emitting infrared light (steps E1, E2 in the flowchart ofFIG. 19).

Further, a value "0" is set to the ROM address register M of the RAM 36(step E3).

Operation of the end key 32d of the key input unit 32 sets a value "0"to the light emitting flag register F1 of the RAM 36, while the lightemitting flag register F1 is set to a value "1" and the light emittingelement 34b is emitting infrared light. Then, the light emitting element34b stope emitting infrared light, and the ROM address register M isinitialized to a value "0" (steps E4, E5, E6, E7).

In the image display mode, when neither the start key 32c nor the endkey 32d is operated, a light detecting process (FIGS. 20, 21) will beperformed (E1, E4, EC).

More specifically, when the start key 32c is operated, the transferringunit 34 starts emitting infrared light. When no non-contacting operationis performed by the user after a value "1" is set to the light emittingflag register F1 and a value "0" is set to the ROM address register M(steps E1, E2, E3), it is determined "NO" at step F1 in the illuminationdetecting operation (FIGS. 20, 21), because the light receiving element35b of the receiving unit 35 receives no reflected infrared light.

Since a value "1" is set to the light emitting flag register F1 and avalue "1" is not set to the light receiving flag register S, it isdetermined "YES" at step F2 and "NO" at step F3. Then, time countingdata of 32 Hz is added to the two-second timer register T0 (step F4 ofFIG. 21).

Time counting data is read out from the two-second timer register T0 andit is judged at step F5 whether an infrared-light emitting period of 2seconds has lapsed. When "NO" is determined at step F5, i.e., it isdetermined at step F5 that no period of 2 seconds has not lapsed afterthe light emitting element 34b starts emitting infrared light or afterthe start key 32c is operated, an image display process (FIG. 22) willbe performed (steps F5, FD).

In the image display process, time counting data of 32 Hz is added tothe display timer register T2 (step G1 of FIG. 22), and it is judgedfrom the display timer register T2 at step G2 whether a period of 2seconds has lapsed. When it is determined at step G2 that the period of2 seconds has not lapsed, it is judged at step G3 whether the objectdesignating register H has been set to a value "0".

Since the object designating register H has been initialized to "0", afirst image data (1) is read out from the ROM 33 (FIG. 15) in accordancewith the ROM address "M=0" of the ROM address register M, and the readout first image data (1) is displayed on the LCD unit 38 (steps G3, G4).

Then, processes at steps F1 to F5, FD (FIGS. 20, 21) are repeatedlyperformed until the time counting data of the two-second timer registerT0 reaches "2" seconds. Meanwhile, processes at steps G1 to G4 (FIG. 22)are also repeatedly performed until timer counting data of the displaytimer register T2 reaches "2" seconds.

When it is determined at step F5 from the two-second timer register T0that the infrared light emitting period of 2 seconds has lapsed, andfurther it is determined at step F6 that a value "0" has been set to thenumber-of-receiving-time register G, a value "0" is set to the lightemitting flag register F1 and the transferring unit 34 stops emittinginfrared light (steps F6, F7).

When it is determined from the display timer register T2 at step G2 thatthe first image data (1) of the ROM address "M=0 " corresponding to theobject designating register "H=0" is displayed for 2 seconds, thedisplay timer register T2 is cleared and a value "1" is set to theobject designating register H (steps G2, G5 to G7).

Then, a second image data (2) is read out from the ROM 33 (FIG. 15) inaccordance with the ROM address "M=0" of the ROM address register M, andthe read out second image data (2) is displayed on the LCD unit 38 inplace of the first image data (1) previously displayed thereon (stepG8).

At step G9, effect sound data is read out from the ROM 33 in accordancewith the ROM address "M=0" of the ROM address register M, but effectsound data is for making no sound. Therefore, the second image data ofthe ROM address "M=0" is displayed with no sound.

Through the processes at steps F1 to F7, FD, the image display processis repeatedly performed, and through the processes at steps G1 to G3,G8, G9, the second imaged data (2) corresponding to the ROM address"M=0" is displayed. When it is judged from the display timer register T2that the second image data (2) corresponding to the ROM address "M=0" isdisplayed for 2 seconds, the display timer register T2 is cleared and avalue "0" is set to the object designating register H (steps G2 to G5,G6 to G10).

When the image display process is performed again, the first image data(1) corresponding to the ROM address "M=0" is read out from the ROM 33and displayed on the LCD unit 38 in place of the second image data (2).

In other words, when the start key 32c is operated, and a value "0" isset to the ROM address register M of the RAM 36 at step E3, the CPU 31alternatively reads out a pair of image data (first and second imagedata) (1), (2) (FIG. 15) corresponding to the ROM address "M=0" inaccordance with time counting data of the display timer register T2 andobject designating data of the object designating register H, andalternatively displays the read out the pair of image data for 2seconds. That is, the first image data (1) of a doghouse is displayedfor first 2 seconds and then the second image data (2) of a dog comingout from the doghouse is displayed for the second 2 seconds, as shown inFIG. 24 (steps F1 to F7, FD of FIGS. 20, 21).

When the user puts his (her) hand in front of the light emitting element34b and the light receiving element 35b of the third electronicnotebook, as shown in FIG. 25, before time counting data of thetwo-second register T0 reaches 2 seconds, while infrared light isemitted by operation of the start key 32c, and image data (1), (2) of adog corresponding to the ROM address "M=0" are alternatively displayedon the LCD unit 38 as shown in FIG. 24, then the infrared light emittedfrom the light emitting element 34b is reflected on the user's palmtowards the light receiving element 35b. Then, the light receivingelement 35b receives the reflected light, and it is determined "YES" atstep F1.

When the infrared light emitted from the transferring unit 35 isreflected on the user's palm and is detected by the light receivingelement 35b of the receiving unit 35 at step EC, it is determined thatthe light receiving flag register S and the number-of-receiving-timeregister G have been set to a value "0" and two-second timer register T0and the receiving timer register T1 are cleared (steps F1, F8 to F19).

Then, the number-of-receiving-time register G is added with "+1", and isset to "1", whereby indicating that the reflected infrared light isreceived once by the receiving unit 35. Further, the light receivingflag register S is set to a value "1", whereby indicating the infraredlight is received, and the image display process is performed (stepsF11, F12, FD). Since the ROM address register M is kept set to "M=0",image display data (1), (2) of a dog corresponding to the ROM address"M=0" are still alternatively displayed on the LCD unit 38 as shown inFIG. 24 (steps G1 to G10).

When processes of steps F1, F8, F13, FD are repeatedly performed whilethe receiving unit 35 continuously receives the infrared light reflectedfrom the user's palm, an adding process of an infrared light emittingtime duration from the time at which the receiving starts receiving thereflected infrared light is repeatedly performed to the two-second timerregister T0 and an adding process of a light receiving time durationfrom the time at which the receiving starts receiving the reflectedinfrared light is repeatedly performed to the receiving timer registerT1, and also image data (1), (2) of a dog corresponding to the ROMaddress "M=0" are alternatively displayed.

When the user keeps his hand apart from the light emitting element 34band the light receiving element 35d, and the infrared light reflectedfrom the his palm is not detected by the light receiving element 34b, itis confirmed that the light emitting flag register F1 is set to "1" andthe light receiving flag register S is set to "1" and then the lightreceiving flag register S is set to a value "0" and an adding process ofan infrared light emitting time duration is performed to the two-secondtimer register T0 (steps F1 to F3, F14, F15).

When the user executes the non-contacting operation instantaneously asif he hits a head of the dog displayed on the LCD unit 38 with his hand,and the light receiving time duration of the reflected infrared light,which corresponds to a time duration of the non-contacting operationperformed by the user, falls within a range of not less than 0.1 secondsto less than 0.3 seconds, the number-of-receiving-time register G is setto "G=1" at step F11. Since the receiving timer register T1 has been setto "T1=0.1 to 0.3 "at step F13, it is determined "YES" at step F16, "NO"at steps F17 and F18. In the image display process at step FD, imagedata (1), (2) of a dog corresponding to the ROM address "M=0" arealternatively displayed again.

Through the processes at steps F1 to F5, FD, the image data (1), (2) ofa dog corresponding to the ROM address "M=0" are alternatively displayedrepeatedly until the infrared light emitting time duration representedby the two-second timer register T0 exceeds 2 seconds. When it isdetermined that the infrared light emitting time duration represented bythe two-second timer register T0 exceeds 2 seconds, it is determined atstep F19 that the number of receiving times of the reflected infraredlight represented by the number-of-receiving-time register G has beenset to "1" at step F11. At step F20, the ROM address register M is setto "1" (steps F5, F6, F19, F20).

Then, a value "0" is set to the light emitting flag register F1, and thetransferring unit 34 stops emitting of infrared light, and further imagedata (1), (2) of a dog corresponding to the ROM address "M=1" arealternatively displayed (steps F7, FD).

More specifically, in the image display process of FIG. 22, the CPU 31alternatively reads out from the ROM 33 image data (1), (2) (FIG. 15)corresponding to the updated ROM address "M=1" in accordance with timecounting data of the display timer register T2 and object designatingdata of the object designating register H, and displays the read outimage data on the LCD unit 38. Image data (1) of a rear view of a dog infront of the doghouse and image data (2) of a looking-back dishearteneddog are alternatively displayed on the LCD unit 38 each for 2 seconds inplace of the image data corresponding to the ROM address "M=0".

At this time, the CPU 31 reads out effect sound data from ROM address"M=1" of the ROM 33, and outputs a sound of "UUH" (a groaning of a dogshowing disheartenment) from the speaker 40 through the amplifiercircuit 39 while the image data (2) of the looking back dog is beingdisplayed on the LCD unit 38 (steps F1, F2, FD, G1 to G1O).

That is, when the user performs non-contacting operation as if he hitson the head of the dog with his hand, the disheartened dog is displayedon the LCD unit 38 with a groaning sound output through the speaker 40.

Meanwhile, when the user performs the non-contacting operation, thenumber-of-receiving-time register G is set to "G=1" and the receivingtimer register T1 is set to "T1<0.3" at step F13. Then it is determined"YES" at step F16, and "NO" at steps F17, F18, and further predeterminedprocesses are performed at steps FD, F1 to F5, FD. In the imagedisplaying process at step FD, where image data (1) (the doghouse) and(2) (the dog in front of the doghouse), corresponding to the ROM address"M=0" are alternatively displayed before the infrared light emittingtime duration of the two-second timer register T0 reaches 2 seconds,when the light receiving element 35b of the receiving unit 35 detectsthe reflected infrared light in response to the non-contacting operationof the user, it is determined that the light receiving flag register Sis not set to "0" and the number-of-receiving-time register G is not setto "0", and the infrared light emitting time duration is added to thetwo-second timer register T0 (steps F1, F8, F9, F21).

Then, the number-of-receiving-time register G is incremented by "+1" andis set to "2", which indicates that the reflected infrared light isreceived twice. Further, the light receiving flag register S is set to"1", which indicated that the reflected infrared light is received.Then, the image display process of FIG. 22 is performed (steps F11, F12,FD).

Since the ROM address register M has been set to the ROM address "M=0",image data (1), (2) of a dog corresponding to the ROM address "M=0" arealternatively displayed as shown in FIG. 24 (steps G1 to G10 of FIG.22).

When the user keeps his hand away from the light emitting element 34band the light receiving element 25b and the reflected infrared light isnot detected, the light receiving flag register S is set to "0" and theinfrared light emitting time duration is added to the two-second timerregister T0 because the light emitting flag register F1 has been set to"1" and the light receiving flag register S has been set to "1" (stepsF1 to F3, F14, F15).

The user can order the dog displayed on the LCD unit 38 to sit down bymoving his hand so as to make itself pass by the light emitting element34b and the light receiving element 35b twice. When the user moves hishand to pass by the light emitting element 34b and the light receivingelement 35b twice, and when the number-of-receiving-time register G hasbeen set to "G=2" at step F11, it is determined "NO" at step F11 andimage data (1), (2) of a dog corresponding to the ROM address "M=0" arerepeatedly and alternatively displayed in the image display process atstep FD.

When it is determined that the infrared light emitting time duration ofthe two-second timer register T0 exceeds 2 seconds, and further when itis determined at step F22 that the number-of-receiving-time register Ghas been set to "G =2" at step F11, which means that the reflectedinfrared light has been received twice, the ROM address register is setto "4" at step F23 (steps F5, F6, F22, F23).

Then, a value "0" is set to the light emitting flag register F1, thetransferring unit 34 stops emitting infrared light and image data of adog corresponding to the updated ROM address "M=4" are displayed (stepsF7, FD).

More specifically, in the image display process of FIG. 22, the CPU 31reads out from the ROM 33 image data (1), (2) (FIG. 15) corresponding tothe ROM address "M=4" alternatively, in accordance with time countingdata of the display timer register T2 and object designating data of theobject designating register H, and displays the read out image data (1),(2) of a dog on the LCD unit 38. In other words, image data (1), (2) ofa dog sitting in front of the doghouse are alternatively displayed onthe LCD unit 38 each for 2 seconds in place of the image data (1), (2)of ROM address "M=0" previously displayed thereon. At this time, the CPU31 reads out-effect sound data corresponding to the ROM address "M=4"from the ROM 33 to generate a sound, and outputs a generated sound of"BOWWOW" through the amplifier circuit 39 and the speaker 40 while theimage data (2) of the dog sitting in front of the doghouse is beingdisplayed (steps F1, F2, FD, steps G1 to G10 of FIG. 22).

As described above, when the user moves his hand so as to make itselfpass by the light emitting element 34b and the light receiving element35b twice and orders the dog displayed on the LCD unit 28 to sit down,image data of the dog sitting down is selected and displayed with thesound of "BOWWOW" outputted through the speaker 40.

The user can give good words to the dog displayed on the LCD unit 38 bymoving his hand so as to make itself pass by the light emitting element34b and the light receiving element 35b three times before the infraredlight emitting time duration of the two-second timer register T0 exceeds2 seconds, while the image data (1), (2) of a dog corresponding to theROM address "M=0" are alternatively displayed during the processes atsteps F1 to F5, FD. When the user waves his hand in front of the lightemitting element 34b and the light receiving element 35b three times,and when the number-of-receiving-time register G has been set to "G=3"at step F11, it is determined "NO" at step F16 after the processes atsteps F1 to F3, F14, F15. Then, in the image display process at step FD,image data (1), (2) corresponding to the ROM address "M=0" arealternatively displayed.

Thereafter, during the processes at steps F1 to F5, FD, the image data(1), (2) corresponding to the ROM address "M=0" will be alternativelydisplayed until the infrared light emitting time duration of thetwo-second timer register T0 exceeds 2 seconds. When it is determinedthat the infrared light emitting time duration of the two-second timerregister T0 exceeds 2 seconds, it is determined at step F22 that thenumber-of-receiving-time register G has not been set to any of "0", "1"and "2" at step F11, and the ROM address register M is set to "5" atstep F24 (steps F5, F6, F19, F22, F24).

Then, a value "0" is set to the light emitting flag register F1, thetransferring unit 34 stops emitting infrared light, and an image displayprocess corresponding to the updated ROM address "M=5" will be performed(steps F7, FD).

More specifically, in the image display process of FIG. 22, the CPU 31reads out from the ROM 33 image data (1), (2) (FIG. 15) corresponding tothe updated ROM address "M=5" alternatively, in accordance with timecounting data of the display timer register T2 and object designatingdata of the object designating register H, and displays the read outimage data (1), (2) of a dog on the LCD unit 38. In other words, imagedata (1), (2) of a dog showing pleasure are alternatively displayed onthe LCD unit 38 each for 2 seconds in place of the image data (1), (2)of ROM address "M=0" previously displayed thereon. At this time, the CPU31 reads out effect sound data corresponding to the ROM address "M=5"from the ROM 33 to generate a sound, and outputs a generated sound of"FAWNING BARKING" through the amplifier circuit 39 and the speaker 40while the image data (2) of the dog showing pleasure is being displayed(steps F1, F2, FD, steps G1 to G10 of FIG. 22)

As described above, when the user moves his hand so as to make itselfpass by the light emitting element 34b and the light receiving element35b three times, thereby giving good words to the dog displayed on theLCD unit 28 to sit down, image data of the dog showing pleasure isselected and displayed with the sound of "FAWNING BARKING" outputtedthrough the speaker 40.

The user can order the dog in front of the doghouse, displayed on theLCD unit 38, to give him hand or to give him another hand, by performingnon-contacting operation temporarily in front of the light emittingelement 34b and the light receiving element 35. When the reflectedinfrared light receiving time duration representative of a time durationof the non-contacting operation by the user falls within a range of notless than 0.3 seconds to less than one second, it is determined at stepsF16, F17 "YES", and ROM address register M is set to "2" at step F25because the number-of-receiving-time register G has been set to "G=1" atstep F11 and the receiving timer register T1 has been set to "T1=0.3 to1.0" at step F13 (steps F17 to F25).

Then, a value "0" is set to the light emitting flag register F1, thetransferring unit 34 stops emitting infrared light, and an image displayprocess corresponding to the updated ROM address "M=2" will be performed(steps F7, FD).

More specifically, in the image display process of FIG. 22, the CPU 31reads out from the ROM 33 image data (1), (2) (FIG. 15) corresponding tothe updated ROM address "M=2" alternatively, in accordance with timecounting data of the display timer register T2 and object designatingdata of the object designating register H, and displays the read outimage data (1), (2) of a dog on the LCD unit 38. In other words, imagedata (1), (2) of a dog giving its hand to the user are alternativelydisplayed on the LCD unit 38 each for 2 seconds in place of the imagedata (1), (2) of ROM address "M=0" previously displayed thereon. At thistime, the CPU 31 reads out effect sound data corresponding to the ROMaddress "M=2" from the ROM 33 to generate a sound, and outputs agenerated sound of "BOWWOW BOWWOW" through the amplifier circuit 39 andthe speaker 40 while the image data (2) of the dog giving its hand tothe user is being displayed (steps F1, F2, FD, steps G1 to G10 of FIG.22)

As described above, when the user performs the non-contacting operationtemporarily in front of the light emitting element 34b and the lightreceiving element 35b, thereby ordering the dog in front of the doghouse, displayed on the LCD unit 28, to give its hand to the user or togive another hand to the user, image data of the dog giving its hand tothe user or giving another hand is selected and displayed with the soundof "BOWWOW BOWWOW" outputted through the speaker 40.

The user can order the dog in front of the doghouse, displayed on theLCD unit 38, to wait or to lie down, by performing non-contactingoperation continuously. When the reflected infrared light receiving timeduration representative of a time duration of the non-contactingoperation by the user is not less than one second, it is determined"YES" at step F16, "NO" at step F17 and "YES" at step 18, and ROMaddress register M is set to "3" at step F26, because thenumber-of-receiving-time register G has been set to "G=1" at step F11and the receiving timer register T1 has been set to "T1>1" at step F13(steps F18 to F26).

Then, a value "0" is set to the light emitting flag register F1, thetransferring unit 34 stops emitting infrared light, and an image displayprocess corresponding to the updated ROM address "M=3" will be performed(steps F7, FD).

More specifically, in the image display process of FIG. 22, the CPU 31reads out from the ROM 33 image data (1), (2) (FIG. 15) corresponding tothe updated ROM address "M=3" alternatively, in accordance with timecounting data of the display timer register T2 and object designatingdata of the object designating register H, and displays the read outimage data (1), (2) of a dog on the LCD unit 38. In other words, imagedata (1), (2) of a dog waiting or lying down are alternatively displayedon the LCD unit 38 each for 2 seconds in place of the image data (1),(2) of ROM address "M=0" previously displayed thereon. At this time, theCPU 31 reads out effect sound data corresponding to the ROM address"M=3" from the ROM 33 to generate a sound, and outputs a generated soundof "KUH" (a groan of a dog) through the amplifier circuit 39 and thespeaker 40 while the image data (2) of the dog lying down is beingdisplayed (steps F1, F2, FD, steps G1 to G10 of FIG. 22)

As described above, when the user performs the non-contacting operationcontinuously in front of the light emitting element 34b and the lightreceiving element 35b, thereby ordering the dog in front of the doghouse, displayed on the LCD unit 28, to wait or to lie down, image dataof the dog waiting or lying down is selected and displayed with thesound of "KUH" outputted through the speaker 40.

When the end key 32d of the key input unit 32 is operated while thelight emitting flag register F1 is set to "1" and infrared light isbeing emitted, a value "0" is set to the light emitting flag register F1and thereby the transferring unit 35 stops emitting infrared light.Then, the ROM address register M is initialized to a value "0", andimage data corresponding to ROM address "M=0" is displayed again, asshown in FIG. 24 (steps E4 to E7, F1, F2, FD).

As described above, in the electronic notebook with the above mentionedstructure, when the user moves his hand in front of the light emittingelement 34b and the light receiving element 35b installed on the body ofthe electronic notebook, infrared light emitted from the light emittingelement 34b is reflected on the user's hand and the reflected infraredlight is received by the light receiving element 35b. Then, ROM addressof ROM address register M is determined depending upon a reflectedinfrared receiving time duration of the light the receiving timerregister T1 and data of the number-of-receiving-time register G. The CPU31 selectively reads out from the ROM 33 image data of a dogcorresponding to the ROM address determined as described above togetherwith pertinent effect sound data. In the present embodiment, the imagedata represent a dog in various movements such as a dog sitting in frontof the doghouse, a dog showing pleasure, a disheartened dog, a doggiving its hand and so on. The read out image data is displayed on theLCD unit 38 and the pertinent effect sound data is audibly output fromthe speaker 40. The user can make his desired image of a dog on thedisplay unit 38 by moving his hand as if he actually orders the dogwithout performing mechanical operations, which are required inconventional display apparatus. For example, the user can selectivelydisplay an image of a disheartened dog and/or a sitting dog on thedisplay unit 38, as desired, in which the user will find numerousentertainments.

In the present embodiment of the electronic notebook, reflection ofinfrared light emitted from the body of the electronic notebook isdetected to judge whether the user has performed non-contactingoperation. For example, however, interruption of external light withuser's hand, reflection on user's hand of a sound wave generated fromthe notebook body, interruption with user's hand of an externallysupplied sound wave, changes in magnetic force caused by a magnet heldin the user's hand may be used to determine what the user has intendedor ordered. As described above, image data to be displayed on thedisplay unit may be switched as desired by the user by executingnon-contacting operation.

Further, changes in waveforms of the infrared light, a sound wave and/ormagnetic force may be also used to switch images displayed on thedisplay unit.

Further in the present embodiment, the images displayed on the displayunit are switched in accordance with either a time duration ofnon-contacting operation or the frequency of performed non-contactingoperations. The images displayed on the display unit, however, may beswitched in accordance with a combination of time durations ofnon-contacting operation and the frequency of performed operations.

Furthermore in the present embodiment, the images displayed on thedisplay unit are switched in accordance with non-contacting operation,but another controlling operations such as switching of mechanicaloperations may be performed in accordance with the non-contactingoperation.

Fourth Embodiment

Now, a fourth embodiment of the present invention will be described withreference to the drawings.

FIG. 27 is a circuit diagram of the third electronic notebookincorporating a switching device according to the present invention.

The fourth electronic notebook is provided with a central processingunit (CPU) 41.

The CPU 41 is driven by a key input signal supplied from a key inputunit 42 to control operations of peripheral circuits in accordance witha system program stored in ROM 43. The CPU 41 is connected with the keyinput unit 42, the ROM 43, a transferring unit 44, a receiving unit 45and RAM 46.

Further, the CPU 41 is connected with a timer 41a including anoscillator circuit 41b and a frequency dividing circuit 41c, a displaydriving circuit 47, a liquid crystal display unit (LCD unit or displayunit) 48 through the display driving circuit 47, an amplifier circuit 49and a speaker 50 through the amplifier circuit 49.

The key input unit 42 is installed with letter/ten keys 42a, a mode key42b, a start key 42c, an end key 42d, a receiving key 42e, a write key42f, a search key 42g, a display switching key 42h and an enter key 42i.The letter/ten keys 42a are used to input "names" and "phone numbers" tobe registered as notebook data. The mode key 42b is operated to set anotebook mode and an image display mode. The start key 42c is operatedto start transferring notebook data to other electronic appliance in thenotebook mode and is operated to send an infrared light in the imagedisplay mode and in the password mode. The end key 42d is operated tostop receiving notebook data from other electronic appliance in thenotebook mode and is operated to stop sending the infrared light in theimage display mode. The receiving key 42e is operated to receivenotebook data sent from other electronic appliance in the notebook mode.The write key 42f is used to register in the RAM 46 notebook data inputby operation of the letter/ten keys 42a and notebook data sent fromother electronic appliance. The search key 42gis operated to search anddisplay data through notebook data registered in the RAM 46. The displayswitching key 42h is operated to selectively switch image data of theROM 43 to be displayed on the LCD unit 48 in the image display mode. Theenter key 42i is operated to switch a normal mode and a displayinstruction setting mode in the image display mode, and to set a user'spass word in the password mode.

In the ROM 43 are previously stored the system program for the CPU 41 toperform a control operation, a plurality of image data, and effect-sounddata corresponding respectively to the image data.

FIG. 28 is a view showing image data of an object and effect-sound datapreviously stored in the ROM 43 of the third electronic notebook.

Four combination data ((1), (2)), each including two image data of a dogin a bit map format, and four corresponding effect-sound data (PCM data)are stored at corresponding addresses "M=1 to 3" in the ROM 43,respectively.

The transferring unit 44 is provided with a transferring circuit 44a anda light emitting element 44b, which emits the infrared light in responseto a transfer data sent from the CPU 41. When the start key 42c isoperated in the notebook mode, the infrared light emitted by the lightemitting element 44b is modulated by means of the transferring circuit44a in accordance with the notebook data input and displayed on thedisplay unit 48 by operation of the letter/ten keys 42a and/or notebookdata searched and displayed by operation of the search key 42g, and themodulated infrared light is transferred as infrared light data from thetransferring unit 44.

In the image display mode, or in the password mode immediately after thepower is turned on, an infrared light of a predetermined frequency istransferred through the transferring circuit 44a and the light emittingelement 44b in response to an instruction of the CPU 41.

The receiving unit 45 is provided with a receiving circuit 45a and alight receiving element 45b for receiving an infrared light dataexternally supplied thereto. When the receiving key 42e is operated inthe notebook mode, notebook data sent from an external electronicappliance is received and demodulated by the receiving circuit 45a andthe light receiving element 45b . The demodulated data is displayed onthe liquid crystal display means 48.

In the image display mode or in the password mode, an externallytransmitted infrared light or reflected infrared light of thetransferring unit 44 is received by the light receiving element 45b, andthe received infrared light is transmitted to the CPU 41 through thereceiving circuit 45a.

FIG. 29 is a view showing registers in the RAM 46 of the fourthelectronic notebook.

The RAM 46 comprises a notebook data register 46a, a display register46b, a mode flag register N, a ROM-address register M, a receiving flagregister F0, a light emitting flag register F1, anumber-of-receiving-time register L, an image-display mode flag registerT, a time register 46c, display-instruction setting registers M1-M3, apassword register PW and an alarm register 46d. The notebook dataregister 46a stores personal data (notebook data) for the predeterminednumber of persons including names and phone numbers at areas designatedby a pointer P. Display data to be displayed on the LCD unit 48 iswritten as image data in the display register 46b. The mode flagregister N is set to a value "0" in the notebook mode, and to a value"1" in the image display mode. The ROM address register M indicatesaddresses in the ROM 43 where the image data of an object and theeffect-sound data are stored. The receiving flag register F0 is set to avalue "1" while notebook data is received in the notebook mode. Thelight emitting flag register F1 is set to a value "1" while the infraredlight is emitted in the image display mode and in the password mode. Thenumber-of-receiving-time register L indicates the number of receivingtimes of reflected infrared light, i.e., indicates how many times thereceiving unit 45 has received reflected infrared light in the imagedisplay mode and/or in the password mode. The image-display mode flagregister T .is set to a value "0" in a normal mode of the image displaymode and to a value "1" in a display-instruction mode of the displaymode. In the time register 46c is registered time counting data from thetimer 41a, which is repeatedly cleared and set to the register 46c inresponse to start/stop of the timer 41a. In the display-instructionsetting registers M1-M3 are set display-instruction data L1-L3,respectively, which correspond to three image data of a dog representedby three ROM addresses "M=1-3" of the ROM 43. The password register PWis set with passwords of users. The alarm register 46d stores PCM dataof an alarm sound (bark of a dog) generated when a wrong password isinputted in the password mode set immediately after the power is turnedon.

On the LCD unit 48, any one of notebook data input by operation of theletter/ten keys 42a, notebook data searched through the notebook dataregister 46a of the RAM 46 in response to operation of the search key42g and notebook data received through the receiving unit 45 in responseto operation of the receiving key 42e is displayed in the notebook mode.

In the image display mode and the password mode, image data (1), (2),which are included in at least one combination data read out from theROM 43 in accordance with a ROM address indicated by the ROM addressregister M of the RAM 46, are alternatively displayed on the LCD unit 48each for one second.

Further, an effect sound is output through the speaker 50 in the imagedisplay mode, based on effect-sound data which are read out from the ROM43 in accordance with a ROM address indicated by the ROM addressregister M, and the alarm sound of the alarm sound register 46d of theRAM 46 is output through the speaker 50 when a wrong password is input.

The time 41a installed in the CPU 41 starts a time counting operation inthe image display mode at the same time when the receiving unit 45receives reflected infrared light after the transferring unit 44 emitsinfrared light in response to operation of the start key 42c, and startsthe time counting operation in the password mode at the same time whenthe transferring unit 44 emits infrared light in response to operationof the start key 42c. The time counting data of the timer 41a is writtenin the time register 46c of the RAM 46.

Now, operation of the forth electronic notebook with the above mentionedstructure will be described.

In the case that a value "0" has been set to the mode flag register N ofthe RAM 46 when the mode key 42b of the key input unit 42 is operated,i.e., in the case that the CPU 41 has been set to the notebook mode, themode flag register N is set to a value "1" and the CPU 41 is switched tothe image display mode.

When a value "0" has been set to the mode flag register N of the RAM 46,the CPU 41 performs a notebook mode process. The notebook mode processis the same as that performed in the third embodiment, and the furtherdescription thereof will be omitted.

When a value "1" is set to the mode flag register N in response tooperation of the mode key 42b of the key input unit 42, and the ROMaddress register M is initialized to "0", an image-display mode processis performed in accordance with the flowchart of FIG. 30.

Since the ROM address register M has been to "M=0" at the initiation ofthe image-display mode process, an image display process starts at stepKC when the start key 42c of the input unit 42 is operated (steps K1,K2, K3, K4, K5, KC of FIG. 30).

More specifically, in the image display process of FIG. 31, the CPU 41alternatively reads out from the ROM 43 image data (1), (2) (FIG. 28)corresponding to the ROM address "M=0" previously set to the ROM addressregister M, and displays the read out image data (1) of and (2) of a dogon the LCD unit 48. In other words, image data (1) of a doghouse and (2)of a dog sitting in front of the doghouse are alternatively displayed onthe LCD unit 48 each for one second in place of the image data (1), (2)(steps L1, L2 of FIG. 31).

At this time, the CPU 41 reads out from the ROM 33 effect sound datacorresponding to the ROM address "M=0" set to the ROM address registerM. Since effect sound data corresponding to the ROM address "M=0" is formaking no sound, image data (1), (2) are displayed as described abovewith no sound (step L3).

Meanwhile, when the user operates the display switching key 42h of thekey input unit 42 to set a display instruction with respect to imagedata of a lying dog corresponding to the ROM address "M=3" of the ROM43, the ROM address register M on the ROM address M is incremented by"+1" every operation of the displaying switching key 42h and image dataof a dog corresponding to the ROM address "M=1 to 3" are repeatedlydisplayed (steps K3, K6, KC of FIG. 30).

More specifically, when a value "1" is set to the ROM address register Min response to the first operation of the display switching key 42h bythe user, the CPU 41 alternatively reads out from the ROM 43 image data(1), (2) (FIG. 28) corresponding to the ROM address "M=1", and displaysthe read out image data (1), (2) on the LCD unit 48. That is, image data(1), (2) of a disheartened dog are alternatively displayed on the LCDunit 48 each for one second (steps K3, K6, KC of FIG. 30, steps L4, L5of FIG. 31).

At this time, the CPU 41 reads out effect sound data corresponding tothe ROM address "M=1" of the ROM 43, and outputs a sound of "UUH" (agroan of a dog showing disheartenment) from the speaker 50 through theamplifier circuit 49 (step L6).

When a value "2" is set to the ROM address register M in response to thesecond operation of the display switching key 42h by the user, the CPU41 alternatively reads out from the ROM 43 image data (1), (2) (FIG. 28)corresponding to the ROM address "M=2", and displays the read out imagedata (1), (2) on the LCD unit 48. That is, image data (1), (2) of a doggiving hand are alternatively displayed on the LCD unit 48 each for onesecond (steps K3, K6, KC of FIG. 30, steps L7, L8 of FIG. 31).

At this time, the CPU 41 reads out effect sound data corresponding tothe ROM address "M=2" of the ROM 43, and outputs a sound of "BOWWOW" (agroaning of a dog) from the speaker 50 through the amplifier circuit 49(step L9).

When a value "3" is set to the ROM address register M in response to thethird operation of the display switching key 42h by the user as shown inFIG. 33, the CPU 41 alternatively reads out from the ROM 43 image data(1), (2) (FIG. 28) corresponding to the ROM address "M=3", and displaysthe read out image data (1), (2) on the LCD unit 48. That is, image data(1), (2) of a lying dog are alternatively displayed on the LCD unit 48each for one second (steps K3, K6, KC of FIG. 30, steps L7, L10 of FIG.31).

At this time, the CPU 41 reads out effect sound data corresponding tothe ROM address "M=3" of the ROM 43, and outputs a sound of "KUH" (agroan of a dog) from the speaker 50 through the amplifier circuit 49(step L11).

As described above, when the user operates the input unit 42i to set adisplay instruction with respect to image data corresponding to the ROMaddress "M=3" while the image data of a lying dog corresponding to theROM address "M=3" of the ROM 43 is displayed on the LCD unit 48, theimage-display mode flag register T is set to "0" in the normal mode, inwhich the flag register T has been set to "1", and the operation mode isswitched to the display instruction mode (steps K2, K7, K8).

In the display-instruction setting mode in which the image-display modeflag register T has been set to "1", the image-display mode flagregister T is set to "0" in the normal mode, the operation mode isswitched to the normal mode (steps K7, K9).

When the user operates the start key 42c with the image data of a lyingdog corresponding to the ROM address "M=3" of the ROM 43 being displayedon the LCD unit 48 as shown in FIG. 33 and with the display-instructionsetting mode flag register T being set to "T=1", the light emitting flagregister F1 is set to "1". Then, the light emitting element 44b of thetransferring unit 44 emits infrared light and the image-display modeflag register T is set to "0" and the number-of-receiving-time registerL is reset to "0" (steps K1, K10, K11).

The display instruction with respect to image data corresponding to theROM address "M=3" of the ROM 43 (the image data of a lying dogcorresponding to the ROM address "M=3") displayed on the LCD unit 48 isset as follows: When the light receiving element 45b of the receivingunit 45 receives infrared light reflected on the user's hand in responseto the first non-contacting operation at the time when the user waveshis hand twice, the timer 41a starts time counting operation and thetime counting data is written in the time register 46c, a time countingoperation start counts a predetermined time duration (for example, twoseconds), and the number-of-receiving-time register L is incremented by"+1" thereby being set to "1" (steps K4, K12, K13, K14).

When the light receiving element 45b of the receiving unit 45 receivesinfrared light reflected on the user's hand in response to the secondnon-contacting operation in the similar manner described above, thenumber-of-receiving-time register L is further incremented by "+1",thereby being set to "2" (steps K4, K12, K14).

During the time counting operation of the time register 46c before thetime counting data to be written in the time register 46c exceeds apredetermined time duration, image data of a lying dog corresponding tothe ROM address "M=3" are repeatedly displayed and pertinent effectsound data are audibly output (steps K5, K15, KC, L7, L10, L11).

When the time counting data to be written in the time register 46cexceeds the predetermined time duration, the timer 41a stops timecounting operation and the time register 46c is cleared (steps K15,K16).

Since the image-display mode flag register T is set to "1", which setsthe display instruction setting mode with respect to the image data of adog corresponding to the ROM address "M=3", the number of receivingtimes of the reflected infrared light "2" is set and stored in thenumber-of-receiving-time register L (steps K17, K18).

Then, the image-display mode flag register T is reset to "0", andthereby the operation mode is switched to the normal mode. (step K19).

Thereafter, similar display-instruction setting processes are performedwith respect to the image data of a disheartened dog corresponding tothe ROM address "M=1" and the image data of a dog giving handcorresponding to the ROM address "M=2". The frequencies of receipts ofthe reflected infrared light in response to the non-contactingoperations performed respectively in the display-instruction settingprocesses are set and stored as display-instruction data L1, L2 to thedisplay-instruction setting registers M1, M2 (steps K3, K6, K2, K7, K8,K4, K12 to K19).

Now, we assume that, for example, the frequency ("1") of receipts of thereflected infrared light in response to the non-contacting operation isset as display instruction data L1 to the display instruction settingregister M1, and the frequency ("3") of receipts of the reflectedinfrared light in response to the non-contacting operation is set asdisplay instruction data L2 to the display instruction setting registerM2.

When the start key 42c is operated to display a desired image of a dogin accordance with an instruction of non-contacting operation after thedisplay instruction data L1-L3 have been set to the display instructionsetting registers M1-M3 respectively and a value "0" has been set to theimage-display mode flag register T, thereby the operation mode has beenswitched to the normal mode, then a value "1" is set to the lightemitting flag register F1 and the light emitting element 44b of thetransferring unit 44 emits infrared light and, further, thenumber-of-receiving-time register L is reset to "0" (steps K1, K10,K11).

When the user performs the non-contacting operations twice (waves hishand twice), as shown in FIG. 34, to display the image data of a lyingdog stored in the ROM 43 and the light receiving element 45b of thereceiving unit 45 receives reflected infrared light in response to thefirst non-contacting operation, the timer 41a starts the time countingoperation and time counting data is written in the time register 46c.Then, the time counting process starts to count a predetermined timeduration (for example, 2 seconds) and the number-of-receiving-timeregister L is set to "1" (steps K4, K12, K13, K14).

When the light receiving element 45b of the receiving unit 45 receivesreflected infrared light in response to the second non-contactingoperation, the number-of-receiving-time register L is incremented to "2"(steps K4, K12, K14).

During the time counting operation of the time register 46c before thetime data in the time register 46c exceeds the predetermine timeduration, the image data of a dog coming out of the doghousecorresponding to the ROM address "M=0" are repeatedly displayed andpertinent effect sound data are audibly output as shown in FIG. 32(steps K5, K15, KC, L1, L2, L3).

When the time counting data to be written in the time register 46cexceeds the predetermined time duration, the timer 41a stops timecounting operation and the time register 46c is cleared (steps K15,K16).

Since the image-display mode flag register T is set to "0", which setsthe normal display mode, the display instruction setting register M3 issearched, in which the frequency "2" of receipts of the reflectedinfrared light in response to the non-contacting operation by the userset in the number-of-receiving-time register L is set as the displayinstruction data L3, and the ROM address is set to "M=3" (steps K17,K20).

Then, the CPU 41 reads out from the ROM 43 image data (1), (2) (FIG. 28)corresponding to the ROM address "M=3", and displays the read out imagedata (1), (2) on the LCD unit 48. That is, image data (1), (2) of alying dog are alternatively displayed on the LCD unit 48 each for onesecond (steps K20, KC of FIG. 30, steps L7, L10 of FIG. 31).

At this time, the CPU 41 reads out effect sound data corresponding tothe ROM address "M=3" of the ROM 43, and outputs a sound of "KUH" (agroan of a dog) from the speaker 50 through the amplifier circuit 49(step L11).

With the light emitting flag register F1 set to "1" by operation of thestart key 42c and infrared light being emitted from the light emittingelement 44d of the transferring unit 44 and further with the lightreceiving register L reset to "0", when the user waves his hand once todisplay image data of a disheartened dog stored in the ROM 43, the lightreceiving element 45b of the receiving unit 45 receives infrared lightreflected on the user's hand. Then, the timer 41a starts the timecounting operation and time counting data is written in the timeregister 46c, whereby the time counting process starts counting apredetermined time duration (for example, 2 seconds) (steps K4, K12,K13).

And the number-of-receiving-time register L is incremented by (+1) andis set to "1" (step K14).

During the time counting operation of the time register 46c before thetime counting data to be written in the time register 46c exceeds apredetermined time duration, image data of a dog coming out from thedoghouse corresponding to the ROM address "M=0" are repeatedly displayedand pertinent effect sound data are audibly output (steps K5, K15, KC,L1, L2, L3).

When the time counting data to be written in the time register 46cexceeds the predetermined time duration, the timer 41a stops timecounting operation and the time register 46c is cleared (steps K15,K16).

Since the image-display mode flag register T is set to "0", which setsthe normal display mode, the display instruction setting register M1 issearched, in which the frequency "1" of receipts of the reflectedinfrared light in response to the non-contacting operation by the userset in the number-of-receiving-time register L is set as the displayinstruction data L1, and the ROM address is set to "M=1" (steps K17,K20).

Then, the CPU 41 reads out from the ROM 43 image data (1), (2) (FIG. 28)corresponding to the ROM address "M=1", and displays the read out imagedata (1), (2) on the LCD unit 48. That is, image data (1), (2) of adisheartened dog are alternatively displayed on the LCD unit 48 each forone second (steps K20, KC of FIG. 30, steps L4, L5 of FIG. 31).

At this time, the CPU 41 reads out effect sound data corresponding tothe ROM address "M=1" of the ROM 43, and outputs a sound of "UUH" (agroaning of a dog showing disheartenment) from the speaker 50 throughthe amplifier circuit 49 (step L11).

With the light emitting flag register F1 set to "1" by operation of thestart key 42c and infrared light being emitted from the light emittingelement 44d of the transferring unit 44 and further with the lightreceiving register L reset to "0" (steps K1, K10, K11), when the userwaves his hand three times, i.e., performs non-contacting operationsthree times, to display image data of a dog giving hand stored in theROM 43, the light receiving element 45b of the receiving unit 45receives infrared light reflected on the user's hand in response to theuser's first non-contacting operation. Then, the timer 41a starts thetime counting operation and time counting data is written in the timeregister 46c, whereby the time counting process starts counting apredetermined time duration (for example, 2 seconds) and thenumber-of-receiving-time register L is incremented by (+1) and is set to"1" (steps K4, K12, K13, K14).

When the light receiving element 45b of the receiving unit 45 receivesinfrared light reflected on the user's hand in response to the user'ssecond non-contacting operation, the number-of-receiving-time register Lis incremented by (+1) and is set to "2" (steps K4, K12, K14).

When the light receiving element 45b of the receiving unit 45 receivesinfrared light reflected on the user's hand in response to the user'sthird non-contacting operation, the number-of-receiving-time register Lis incremented by (+1) and is set to "3" (steps K4, K12, K14).

During the time counting operation of the time register 46c before thetime counting data to be written in the time register 46c exceeds apredetermined time duration, image data of a dog coming out from thedoghouse corresponding to the ROM address "M=0" are repeatedly displayedand pertinent effect sound data are audibly output (steps K5, K15, KC,L1, L2, L3).

When the time counting data to be written in the time register 46cexceeds the predetermined time duration, the timer 41a stops timecounting operation and the time register 46c is cleared (steps K15,K16).

Since the image-display mode flag register T is set to "0", which setsthe normal display mode, the display instruction setting register M2 issearched, in which the frequency "3" of receipts of the reflectedinfrared light in response to the non-contacting operation by the userset in the number-of-receiving-time register L is set as the displayinstruction data L2, and the ROM address is set to "M=2" (steps K17,K20).

Then, the CPU 41 reads out from the ROM 43 image data (1), (2) (FIG. 28)corresponding to the ROM address "M=2", and displays the read out imagedata (1), (2) on the LCD unit 48. That is, image data (1), (2) of a doggiving hand are alternatively displayed on the LCD unit 48 each for onesecond (steps K20, KC of FIG. 30, steps L7, L8 of FIG. 31).

At this time, the CPU 41 reads out effect sound data corresponding tothe ROM address "M=2" of the ROM 43, and outputs a sound of "BOWWOW" (agroaning of a dog) from the speaker 50 through the amplifier circuit 49(step L11).

As described above, the user can display his desired image data of a dogon the LCD unit 48 by waving his hand in predetermined manners.

FIG. 35 is a flowchart of a password mode process to be performedimmediately after the power is turned on.

When the input key 42i and the start key 42c are operated to set apassword, a value "1" is set to the light emitting flag register F1 andthe light emitting element 44b of the transferring unit 44 emitsinfrared light. At the same time, the timer 41a starts time countingoperation, time counting data is written in the time register 46c, andtime counting process is performed to count a predetermined timeduration (2 seconds) (steps R1, R2, R3, R4 of FIG. 35).

When the user executes non-contacting operations twice in front of thelight emitting element 44b and the light receiving element 45b in tokenof a password, the light receiving element 45b receives reflectedinfrared light twice in response to the con-contacting operations and avalue "2" is set to the number-of-receiving-time register L (steps R5,R6).

When the time counting data written in the time register 46c exceeds 2seconds, a value "0" is set to the light emitting flag register F1 andthe light emitting element 44b stops emitting infrared light. Then, thetimer 41a stops time counting operation and the time register 46c iscleared (steps R7, R8, R9).

As described above, the frequency "2" of light receipts registered inthe number-of-receiving-time register L is set and memorized as apassword in the password register PW (steps R10).

When the power of the electronic notebook in which the password "2" isregistered in the password register PW is turned on, it is indicatedthat a password has been registered, and a value "0" is set to the ROMaddress register M. And, then, image data (1), (2) of a dog coming outfrom the doghouse corresponding to the ROM address "M=0" are read outfrom the ROM 43 and are alternatively displayed on the LCD unit 48 eachfor one second, as shown in FIG. 32 (steps R11, R12).

When the start key 42c is operated to enter a password, a value "1" isset to the light emitting flag register F1 and the light emittingelement 44b of the transferring unit 44 emits infrared light. And at thesame time, the timer 41a starts time counting operation, time countingdata is written in the time register 46c, and time counting process isperformed to count a predetermined time duration (2 seconds) (steps R13,R14, R15).

When the user executes non-contacting operations twice in front of thelight emitting element 44b and the light receiving element 45b to enterthe password, the light receiving element 45b receives reflectedinfrared light twice in response to the con-contacting operations and avalue "2" is set to the number-of-receiving-time register L (steps R16,R17).

When the time counting data written in the time register 46c exceeds 2seconds, a value "0" is set to the light emitting flag register F1 andthe light emitting element 44b stops emitting infrared light. Then, thetimer 41a stops time counting operation and the time register 46c iscleared (steps R18, Rl9, R20).

Then, it is judged whether the frequency "2" of light receiptscorresponding to the non-contacting operations by the user andregistered in the number-of-receiving-time register L coincides with thepassword "2" previously registered in the password register PW. When itis determined that the value registered in the number-of-receiving-timeregister L coincides with the password registered in the passwordregister PW, other processes such as the notebook mode process and theimage display mode process will be performed depending on the key inputoperations (steps R21, R22, other process).

When it is determined that the value registered in 2 does not coincidewith the password registered in the password register PW, no otherprocess will be performed and an alarm sound stored in the alarmregister 46d is audibly output from the speaker 50 and at the same timethe power source is compulsorily turned off (steps R21, R22, R23, R24).

In this case, a cover of a hard case of the electronic notebook may beclosed as if a dog bites.

In other words, the user can enter a password by executing apredetermined hand-waving operation, that is, the user can make theelectronic notebook execute a his desired process such as the notebookmode process and the image display mode process by the predeterminedhand-waving operation.

Therefore, in the electronic notebook with the above mentionedstructure, the user can make the light receiving element 45b receivereflected infrared light by waving his hand so as to pass by the lightemitting element 44b and the light receiving element 45b. Then, thefrequency (L) of the light receipts by the light receiving element 45bis previously memorized in the display instruction register of the RAM46. This frequency (L) of the light receipts by the light receivingelement may be used as an-order to the dogs which are selectivelydisplayed on the LCD unit 48 by operation of the display switching key42h. Therefore, the CPU 41 selectively reads out image data (of a dogshowing pleasure or dog showing disheartenment or dog giving hand) andcorresponding effect sound data from the ROM 43 in accordance with thefrequency (L) of the light receipts by the light receiving element 45b,and displays the read out image data on the LCD unit 48, and furtheraudibly outputs an effect sound based on the read out effect sound datathrough the speaker 50. Therefore, with the present electronic notebook,the user is not required to perform mechanical operation such as keyinputting operation, but can make display on the LCD unit 48 image dataof a dog showing various movements by performing the predeterminedhand-waving operation.

Since the frequency "L" of light receipts by the light receiving element45b is registered as a password in the password register PW, the usercan enter a password by performing non-contacting operations. When thepassword registered in the password register PW coincides with apassword entered by performing the non-contacting operations (thefrequency of light receipts by the light receiving element 45b, adesired process such as the notebook mode process and the image displaymode process may be performed. In conventional electronic notebooks,users are required to enter a password by mechanical operation such as akey input operation but, in the electronic notebook of the presentinvention, the user is not required to perform the mechanicaloperations.

In the present embodiment of the electronic notebook, reflection ofinfrared light emitted from the body of the electronic notebook isdetected to judge whether the user has performed non-contactingoperation. For example, however, interruption of external light withuser's hand, reflection on user's hand of a sound wave generated fromthe notebook body, interruption with user's hand of an externallysupplied sound wave, changes in magnetic force caused by a magnet heldin the user's hand may be used to determine what the user has intendedor ordered. As described above, image data to be displayed on thedisplay unit may be selected and the process may be controlled asdesired by the user by executing non-contacting operation.

Further, changes in waveforms of the infrared light, a sound wave and/ormagnetic force may be also used to judge how non-contacting operationhas performed for selecting image data or detecting the password.

Further in the present embodiment, the images displayed on the displayunit are switched and the password is determined, in accordance with thefrequency of non-contacting operations. Control operation such asmechanical switching operation in the electronic notebook, however, maybe performed in accordance with the frequency of performednon-contacting operations.

Several embodiments of the present invention have been described indetail but these embodiments are simply illustrative and notrestrictive. The present invention may be modified in various manners.All the modifications and applications of the present invention will bewithin the scope and spirit of the invention, so that the scope of thepresent invention should be determined only by what is recited in thepresent appended claims and their equivalents.

What is claimed is:
 1. A portable electronic device including an imagedisplay device which sequentially and selectively displays a pluralityof living thing images corresponding to predetermined growth steps ofthe living thing, wherein said image display device comprises:storagemeans (ROM 13 in FIGS. 1, 3) in which said plurality of living thingimages are prestored; display means (display section 16 in FIG. 1; stepsB1, B10 in FIG. 7; FIGS. 8A, 8C) for selectively and sequentiallydisplaying one of said plurality of living thing images; key input means(ten-key input section 12, ten-key 12b in FIG. 1; step B4 in FIG. 7;ten-key 12b in FIG. 8B) operated by a user with a key operation to inputgrowth element data necessary for the growth of the living thing beingdisplayed on said display means; and display control means (CPU 11 inFIG. 1; steps B9, B10 in FIG. 7) for determining (steps B4, B5, B7 inFIG. 7) whether a value of the growth element data input with the keyoperation through said key input means matches a predetermined value,and for retrieving from said plurality of living thing images stored insaid storage means a living thing image whose growth step is next tothat of the living thing image being displayed when it is determinedthat the input value of the growth element data matches thepredetermined value (step B7=YES in FIG. 7) so that the retrieved livingthing image is displayed on said display means.
 2. The portableelectronic device according to claim 1, further comprising:elementstorage means (ROM 13 in FIGS. 1, 2) in which plural kinds of growthelement images necessary for growth of the living thing are stored; andelement image display control means (CPU 11 in FIG. 1; step B3 in FIG.7) for displaying the plural kinds of growth element images stored insaid element storage means on said display means, wherein said key inputmeans comprises:writing means (ten-key 12b, write key 12e in FIG. 1;steps B4, B5 in FIG. 7) for selecting an arbitrary growth element imagefrom the plural kinds of growth element images displayed by said elementimage display control means, and for writing a value of the growthelement data corresponding to the selected growth element image in saidgrowth element data storage means (RAM 14 in FIG. 1; registers 14c-14ein FIG. 4), and said display control means comprises:determination means(CPU 11 in FIG. 1; step B7 in FIG. 7) for determining whether the storedvalue of growth element data matches the predetermined value (numericdata "3" indicates normal amount and "4" indicates large amount, at stepB7 in FIG. 7); and image display control means (CPU 11 in FIG. 1; stepsB9, B10 in FIG. 7) for retrieving from the plurality of living thingimages stored in said storage means a living thing image whose growthstep is next to that of the living thing image being displayed when itis determined by said determination means that the value of the growthelement data stored in said storage means matches the predeterminedvalue (step B7=YES in FIG. 7), and for displaying the retrieved livingthing image of the next growth step on said display means instead of theliving thing image being displayed thereon.
 3. The portable electronicdevice according to claim 1, comprising image display re-control means(CPU 11 in FIG. 1; steps B7, B10 in FIG. 7) for re-retrieving from theplurality of living thing images stored in said storage means the livingthing image being displayed when it is determined by said determinationmeans that the value of the growth element data stored in said growthelement data storage means does not match with the predetermined value(step B7=NO in FIG. 7) so that the read living thing image beingdisplayed is continued to be displayed on said display means.
 4. Theportable electronic device according to claim 1, wherein the images ofthe living thing are images of an animal or a plant.
 5. A portableelectronic device including an image display device which sequentiallyand selectively displays a plurality of living thing imagescorresponding to predetermined growth steps of the living thing, whereinsaid image display device comprises:image storage means (ROM 13 in FIGS.1, 3) in which said plurality of living thing images corresponding tothe growth steps of the living thing are stored; element storage means(ROM 12 in FIGS. 1, 2) in which plural kinds of growth element imagesnecessary for growth of the living thing are stored; element selectingmeans (key input section 12 in FIG. 1; ten-key 1, 2b in FIG. 1; step B4in FIG. 7) for selecting an arbitrary growth element image from theplural kinds of growth element images stored in said element storagemeans; growth element data storage means (RAM 14 in FIG. 1; registers14c-14e in FIG. 4) for storing a value of the growth element datacorresponding to the growth element image selected by said elementselecting means; designation data storage means (register M in FIG. 4)for storing designation data (M) for designating one of the plurality ofliving thing images stored in said image storage means to selectivelydisplay the designated living thing image; determination means (CPU 11in FIG. 1; step B7 in FIG. 7) for determining whether the value of thegrowth element data stored in said growth element data storage meansmatches a predetermined value (numeric data "3" indicates normal amountand "4" indicates large amount at step B7 in FIG. 7); first displaycontrol means (CPU 11 in FIG. 1; steps B9, B10 in FIG. 7) for renewingthe designation data stored in said designation data storage means todesignation data for designating the living thing image of a next growthstep (M+1) when it is determined by said determination means that thevalue of the growth element data stored in said growth element datastorage means matches the predetermined value (step B7=YES in FIG. 7),and for retrieving from the plurality of living thing images stored insaid living thing image storage means the living thing image of the nextgrowth step designated by the renewed designation data so that theretrieved living thing image is displayed; and second display controlmeans (CPU 11 in FIG. 1; step B10 in FIG. 7) for retaining thedesignation data stored in said designation data storage means so as notto be renewed to the designation data for designating the living thingimage of the next growth step when it is determined by saiddetermination means that the value of the growth element data stored insaid growth element data storage means does not match the predeterminedvalue, and for retrieving the living thing image designated by thecurrently stored designation data so that the retrieved living thingimage is displayed.
 6. The portable electronic device according to claim5, further comprising element image display control means (step B3 inFIG. 7; see FIG. 8B) for displaying on said display means the pluralkinds of growth element images stored in said element storage means. 7.The portable electronic device according to claim 5, wherein the pluralkinds of growth element images are stored in said element storage meansin bitmap data format.
 8. The portable electronic device according toclaim 5, wherein the growth element data is numeric data correspondingto the growth element image, and said growth element data storage meansstores the numeric data.
 9. The portable electronic device according toclaim 5, wherein the images of the living thing are images of an animalor a plant.
 10. A portable electronic device including an image displaydevice which sequentially and selectively displays a plurality of livingthing images corresponding to predetermined growth steps of the livingthing, wherein said image display device comprises:living thing imagestorage means (ROM 23 in FIGS. 9, 10) in which the plurality of livingthing images are prestored; display means (display section 26 in FIG. 9)for selectively displaying one of the plurality of living thing imagesstored in said living thing image storage means; clock means (timer 21ain FIG. 9; step X9 in FIG. 12; clock register 24c in FIG. 11) forclocking a clock pulse signal to obtain clock data; growth element datastorage means (RAM 24 in FIGS. 9, 11) for storing growth element data(sensors 28, 29 in FIG. 9; "temperature data" at step X11, "illuminationdata" at step X12 in FIG. 12) necessary for growth of the living thingwhen one of the growth element data is input; display control means(steps X17, X8 in FIG. 12) for determining (step X15 in FIG. 12) whethera value of the clock data obtained by said clock means matches a firstpredetermined value ("24 hours" in FIG. 12) and a value of the growthelement data stored in said growth element data matches a secondpredetermined value ("constant accumulated value" in FIG. 12), and forretrieving from the plurality of living thing images stored in saidliving thing image storage means a living thing image whose growth stepis next to that of the living thing image being displayed when matchesare determined so that the retrieved living thing image is displayedinstead of the living thing image being displayed.
 11. The portableelectronic device according to claim 10, wherein the images of theliving thing are images of an animal or a plant.
 12. The portableelectronic device according to claim 10, including clearing means (CPU21 in FIG. 9; step X20 in FIG. 12) for clearing the value of the growthelement data stored in said growth element data storage means every timesaid display control means displays the living thing image of the nextgrowth step.
 13. An image display control method which sequentially andselectively displays a plurality of living thing images corresponding topredetermined growth steps of the living thing on an image displaysection (display section 16 in FIG. 1; steps B1, B10 in FIG. 7) in aportable electronic device, comprising the steps of:display step ofcontrolling storage means (ROM 13 in FIGS. 1, 3) having the plurality ofliving thing images prestored therein, and of selectively displaying(CPU 11 in FIG. 1; steps B1, B10 in FIG. 7; FIGS. 8A, 8C) one of theplurality of living thing images stored in said storage means so as tobe displayed on said image display section; key input step (key inputsection 12 ten-key 12b in FIG. 1; step B4 in FIG. 7; ten-key 12b in FIG.8B) of inputting, by a user with a key operation, growth element datafor the living thing image displayed by said display step; and displaycontrol step (CPU 11 in FIG. 1; steps B9, B10 in FIG. 7) of determining(steps B4, B5, B7 in FIG. 7) whether a value of the growth element datainput with the key operation in said key input step matches apredetermined value, and of retrieving from the stored plurality ofliving thing images a living thing image whose growth step is next tothe living thing image being displayed when it is determined that theinput value of the growth element data matches the predetermined data(B7=YES in FIG. 7) so that the retrieved living thing image is displayedon said image display section instead of the living thing image beingdisplayed.
 14. The image display control method according to claim 13,comprising an image display re-control step (CPU 11 in FIG. 1; steps B7,B10 in FIG. 7) of re-retrieving from the plurality of living thingimages stored in said storage means the living thing image beingdisplayed when it is determined at said determining step that the storedvalue of the growth element data matches the predetermined value (stepB7=NO in FIG. 7) so that the retrieved living thing image beingdisplayed is continued to be displayed on said display means.
 15. Theimage display control method according to claim 13, further comprisingan element image display control step (step B3 in FIG. 7; see FIG. 8B)of displaying the stored plural kinds of growth element images on saiddisplay means.
 16. An image display control method which sequentiallyand selectively displays a plurality of living thing imagescorresponding to predetermined growth steps of the living thing on animage display section (display section 16 in FIG. 1; steps B1, B10 inFIG. 7) in a portable electronic device, comprising the steps of:growthelement image display step (step B3 in FIG. 7) of displaying pluralkinds of growth element images for growing the living thing on saidimage display section; element selecting step (key input section 12,ten-key 12b in FIG. 1; step B4 in FIG. 7) of selecting an arbitrarygrowth element image from the plural kinds of the growth element imagesdisplayed by said growth element image display step; growth element datastoring step (RAM 14 in FIG. 1; registers 14c-14e in FIG. 4; step B5 inFIG. 7) of storing a value of the growth element data corresponding tothe growth element image selected at said element selecting step;designation data storing step (register M in FIG. 4; step B9 in FIG. 7)of storing designation data (M) for designating one of the plurality ofliving thing images for selectively displaying the designated livingthing image; determining step (CPU 11 in FIG. 1; step B7 in FIG. 7) ofdetermining whether a value of the growth element data stored at saidgrowth element data storing step matches a predetermined value (numericdata "3" indicates normal amount and "4" indicates large amount at stepB7 in FIG. 7); first display control step (CPU 11 in FIG. 1; steps B9,B10 in FIG. 7) of renewing (M+1) the designation data stored at saiddesignation data storing step to designation data for designating theliving thing image of a next growth step when it is determined at saiddetermining step that the value of the growth element data stored atsaid growth element data storage step matches the predetermined value(step B7=YES in FIG. 7), and of accessing image storage means (ROM 13 inFIGS. 1, 3) storing a plurality of living thing images corresponding tothe predetermined growth steps of the living thing to retrieve a livingthing image of the next growth step designated by the reneweddesignation data from the plurality of living thing images previouslystored in said image storage means so that the retrieved living thingimage is displayed; and second display control step (CPU 11 in FIG. 1;step B10 in FIG. 7) of retaining the designation data stored by saiddesignation data storing step so as not to be renewed to the designationdata for designating the living thing image of the next growth step whenit is determined at said determining step that the value of the growthelement data stored at said growth element data storing step does notmatch the predetermined value (step B7=NO in FIG. 7), and of retrievingfrom the plurality of living thing images the living thing imagedesignated by the currently stored designation data so that theretrieved living thing image is displayed.
 17. An image display controlmethod which sequentially and selectively displays a plurality of livingthing images corresponding to predetermined growth steps of the livingthing on an image display section (display section 16 in FIG. 1; stepsB1, B10 in FIG. 7) in a portable electronic device, comprising the stepsof:display step (X8 in FIG. 12) of controlling living thing imagestorage means (ROM 23 in FIGS. 9, 10) having the plurality of livingthing images prestored therein, and of selectively displaying one of theplurality of living thing images stored in said living thing storagemeans on said image display section; clocking step (timer 21a in FIG. 9;step X9 in FIG. 12; clock register 24c in FIG. 11) of clocking a clockpulse signal to obtain clock data; growth element data storing step (RAM24 in FIGS. 9, 11; registers 24d, 24e in FIG. 11; step X13 in FIG. 12)of storing growth element data necessary for growth of the living thingwhen at least one kind of the growth element data is input (sensors 28,29 in FIG. 9; "temperature data" at step X11, "illumination data" atstep X12 in FIG. 12); and display control step (steps X17, X8 in FIG.12) of determining (step X15 in FIG. 12) whether a value of the clockdata obtained by said clock means matches a first predetermined value("24 hours" in FIG. 12) and a value of the growth element data stored insaid growth element data matches a second predetermined value ("constantaccumulated value" in FIG. 12), and of retrieving from the plurality ofliving thing images stored in said living thing image storage means aliving thing image whose growth step is next to that of the living thingimage being displayed when matches are determined so that the retrievedliving thing image is displayed instead of the living thing image beingdisplayed.
 18. The image display control method according to claim 17,further including a clearing step (CPU 21 in FIG. 9; step X20 in FIG.12) of clearing the value of the growth element data stored at saidgrowth element storing step every time the living thing image of thenext growth step is displayed by said display control step.
 19. Arecording medium (ROM 13 in FIG. 1) storing a computer readable imagedisplay control program for sequentially and selectively displaying aplurality of living thing images corresponding to predetermined growthsteps of the living thing on an image display section (display section16 in FIG. 1; steps B1, B10 in FIG. 7) in a portable electronic devicewherein said image display control program causes a computer (CPU 11 inFIG. 1) to:control storage means (ROM 13 in FIGS. 1, 3) having theplurality of living thing images prestored therein, and selectivelydisplay (steps B1, B10 in FIG. 7; FIGS. 8A, 8C) one of the plurality ofliving thing images stored in said storage means on said image displaysection; determine (steps B4, B5, B7 in FIG. 7) whether a value ofgrowth element data matches a predetermined value when the growthelement data for the living thing image being displayed is input by auser with a key operation (key input section 12, ten-key 12b in FIG. 1;step B4 in FIG. 7; ten-key 12b of FIG. 8B), and retrieve from theplurality of living thing images a living thing image whose growth stepis next to that of the living thing image being displayed when it isdetermined that the input value of the growth element data matches thepredetermined value (B7=YES in FIG. 7) so that the retrieved livingthing image is displayed on said image display section instead of theliving thing image being displayed thereon (steps B9, B10 in FIG. 7).20. A recording medium (ROM 13 in FIG. 1) storing a computer readableimage display control program for sequentially and selectivelydisplaying a plurality of living thing images corresponding topredetermined growth steps of the living thing on an image displaysection (display section 16 in FIG. 1; steps B1, B10 in FIG. 7) in aportable electronic device wherein said image display control programcauses a computer (CPU 11 in FIG. 1) to:display (step B3 in FIG. 7)plural kinds of growth element images for growing the living thing onsaid image display section; store (RAM 14 in FIG. 1; registers 14c-14ein FIG. 4; step B4 in FIG. 7) a value growth element data correspondingto an arbitrary growth element image when the arbitrary growth elementimage is selected (key input section 12 in FIG. 1; ten-key 12b in FIG.1; step B4 in FIG. 7) from the displayed plural kinds of growth elementimages; store (register M in FIG. 4; step B9 in FIG. 7) designation data(M) for designating one of the plurality of living thing images forselectively displaying the designated living thing image; determine (CPU11: step B7 in FIG. 7) whether the stored value of the growth elementdata matches a predetermined value (numeric data "3" indicates normalamount and "4" indicates large amount, at step B7 in FIG. 7), and renew(M+1) the stored designation data to designation data for designating aliving thing image of the next growth step when it is determined thatthe value of the stored growth element data matches the predeterminedvalue (step B7=YES in FIG. 7), then access image storage means (ROM 13in FIGS. 1, 3) storing a plurality of living thing images correspondingto the predetermined growth steps of the living thing to retrieve theliving thing image of the next growth step from the plurality of livingthing images previously stored in said image storage means so that theretrieved living thing image is displayed (steps B9, B10 in FIG. 7); andnot to renew the stored designation data to designation data of the nextgrowth step when it is determined that the value of the growth elementdata does not match the predetermined value (step B7=NO in FIG. 7), andretrieve from the plurality of living thing images stored in said imagestorage means the image of living thing whose growth step is designatedby the currently stored designation data so that the retrieved livingthing image is displayed (step B10 in FIG. 7).
 21. A recording medium(ROM 23 in FIG. 9) storing a computer readable image display controlprogram for sequentially and selectively displaying a plurality ofliving thing images corresponding to predetermined growth steps of theliving thing on an image display section (display section 26 in FIG. 9)in a portable electronic device wherein said image display controlprogram causes a computer (CPU 21 in FIG. 9) to:control living thingimage storage means (ROM 23 in FIGS. 9, 10) having living thing imagesprestored therein corresponding to the predetermined growth steps of theliving thing, and selectively display one of the plurality of livingthing images stored in said living thing image storage means; clock aclock pulse signal to obtain clock data (timer 21a in FIG. 9; step X9 inFIG. 12; clock register 24c in FIG. 11); store (RAM 24 in FIGS. 9, 11;registers 24d, 24e in FIG. 11; step X13 in FIG. 12) growth element datanecessary for growth of the living thing when at least one kind of thegrowth element data is input (sensors 28, 29 in FIG. 9; "temperaturedata" at step X11, "illumination data" at X12 in FIG. 12); and determinewhether a value of the obtained clock data matches (step X14 in FIG. 12)a first predetermined value ("24 hours" in FIG. 12) and the stored valueof the growth element data matches (step X15 in FIG. 12) a secondpredetermined value ("constant accumulated value" in FIG. 12), andretrieve from the plurality of living thing images stored in said livingthing image storage means a living thing image whose growth step is nextto that of the living thing image being displayed when the matches aredetermined (step X15=YES in FIG. 12) so that the retrieved living thingimage is displayed on said image display section instead of the livingthing image being displayed thereon.
 22. A portable electronic devicefor sequentially displaying images of a living thing in accordance withgrowth steps as though the living thing is growing, said electronicdevice comprising:display means (16 in FIG. 1; steps B1, B10 in FIG. 7;FIGS. 8A, 8C) for displaying the images of the living thing; key inputmeans (12, 12b in FIG. 1; step B4 in FIG. 7; 12b in FIG. 8B) forinputting, by a key operation, growth conditions necessary for theliving thing; and display control means (11 in FIG. 1; steps B6, B10 inFIG. 7) for causing said display means to sequentially display, asthough the living thing is growing, the images of the living thing fromone image showing an initial growth step to another image showing aninitial growth step in accordance with the growth conditions input bythe key operation of said key input means.
 23. The portable electronicdevice according to claim 22, wherein:said display means includes livingthing image display means (16 in FIG. 1; steps B1, B10 in FIG. 7; FIGS.8A, 8B) for displaying the images of the living thing on a screen, andlist display means (16 in FIGS. 1, 8B; step B3 in FIG. 7) for displayinga list of the growth conditions on said screen in place of the images ofthe living thing; said key input means includes selecting means (12b inFIGS. 1, 8B; step B4 in FIG. 7) for selecting a given growth conditionupon the key operation from the list of the growth conditions displayedon said screen; and said display control means includes living thingimage display control means (11 in FIG. 1; steps B9, B10 in FIG. 7) forcausing said display means to display the images of the living thingsequentially from one image showing the initial growth step to anotherimage showing the next growth step in accordance with the given growthcondition selected by said selecting means.
 24. The portable electronicdevice according to claim 22, wherein:said display control meansincludesan internal memory (13 in FIGS. 1, 3), connected to said keyinput means and said display means in said portable electronic device,for prestoring images of the living thing each of which shows one ofpredetermined steps of the growth of the living thing, and control means(11 in FIG. 1) for sequentially reading the images of the living thingfrom said internal memory and causing said display means to display theread images in accordance with the growth conditions input by the keyoperation of said key input means and in the order of said predeterminedsteps of the growth the living thing.
 25. The portable electronic deviceaccording to claim 22, further comprising:data input means (12a, 12b inFIG. 1; steps A1, A2 in FIG.6) for inputting data; switching means (12cin FIG. 1) for performing switching between an image display mode (SB inFIG. 5) in which the images of the living thing are displayed and a datadisplay mode (SA in FIG. 5) in which the data input by said data inputmeans is displayed; and means (steps B1, B10 in FIG. 7; step A3 in FIG.6) for displaying only the images of the living thing on said displaymeans while said display means is in the image display mode as a resultof the switching performed by said switching means, and for displayingonly said data on said display means while said display means is in thedata display mode as a result of the switching performed by saidswitching means.
 26. A portable electronic device for sequentiallydisplaying images of a living thing in accordance with growth steps asthough the living thing is growing, said electronic devicecomprising:key input means (12, 12b in FIG. 1; step B4 in FIG. 7; 12b inFIG. 8B), which is operated by a user, for inputting, by a keyoperation, growth conditions necessary for the living thing; livingthing image display means (16 in FIG. 1; steps B1, B10 in FIG. 7; FIGS.8A, 8C) having a living thing image display area for displaying theimages of the living thing; list display means (16 in FIGS. 1, 8B; stepB3 in FIG. 7) having a list display area for displaying a list of thegrowth conditions necessary for the living thing; external operationmeans (12d in FIGS. 1, 8B) having a key for being operated by the userin order to switch an image to be displayed; first display control means(steps B1-B3 in FIG. 7) for, when the key of said external operationmeans is operated, performing switching from the display of the imagesof the living thing on said living thing image display area to thedisplay of the list on said list display area, in response to theoperation of the key of said external operation means; and seconddisplay control means (11 in FIG. 1, steps B6-B10 in FIG. 7) for, whenthe key operation of said key input means is performed, causing saiddisplay means to display, as though the living thing is growing, theimages of the living thing sequentially from one image showing aninitial growth step to another image showing a next growth step inresponse to said key operation and in accordance with the growthconditions input by said key operation, wherein said electronic deviceis equipped with said key input means, said living thing image displaymeans, said list display means, said external operation means, saidfirst display control means and said second display control means.
 27. Aportable electronic device for sequentially displaying images of aliving thing in accordance with growth steps as though the living thingis growing, said electronic device comprising:display means (26 in FIG.9) for displaying the image of the living thing; storing means (24, 24d,24e in FIGS. 9, 11) for, each time growth conditions necessary for theliving thing are input externally, storing the input growth conditions;determining means (11 in FIG. 9; step X15 in FIG. 12) for determiningwhether the growth conditions stored in said storing means havesatisfied predetermined growth conditions; and display control means (21in FIG. 9; steps X18, X8 in FIG. 12) for causing said display means todisplay the images of the living thing sequentially from one imageshowing an initial growth step to another image showing a next growthstep in accordance with the result of the determination performed bysaid determining means; wherein said electronic device is portable andis equipped with said display means, said storing means and said displaycontrol means.
 28. The portable electronic device according to claim 27,wherein:said display control means includesan internal memory (23 inFIGS. 9, 10), connected to said key input means and said display meansin said portable electronic apparatus, for prestoring images of theliving thing each of which shows one of predetermined steps of thegrowth of the living thing, and control means (11 in FIG. 1) forsequentially reading the images of the living thing from said internalmemory and for causing said display means to sequentially display theread images in accordance with the growth conditions stored in saidinternal memory and to in the order of said predetermined steps of thegrowth of the living thing.
 29. The portable electronic device accordingto claim 27, further comprising:data input means (12a, 12b in FIG. 1;steps A1, A2 in FIG. 6), for inputting data; switching means (12c inFIG. 1) for performing switching between an image display mode (SB inFIG. 5) in which the images of the living thing are displayed and a datadisplay mode (SA in FIG. 5) in which the data input by said data inputmeans is displayed; and means (steps B1, B10 in FIG. 7; step A3 in FIG.6) for displaying only the images of the living thing on said displaymeans while said display means is in the image display mode as a resultof the switching performed by said switching means, and for displayingonly said data on said display means while said display means is in thedata display mode as a result of the switching performed by saidswitching means.
 30. A portable electronic device for sequentiallydisplaying images of a living thing in accordance with growth steps asthough the living thing is growing, said electronic devicecomprising:display means (26 in FIG. 9) for displaying the images of theliving thing; storing means (24 shown in FIGS. 9, 11; 24d, 24e in FIG.11; step X13 in FIG. 12) for, each time growth conditions necessary forthe living thing are input externally, storing the input growthconditions; time counting means (21a in FIG. 9; step X8 in FIG. 12) forcounting a time; determining means (steps X14, X15 in FIG. 12) fordetermining whether the time counted by said time counting means and thegrowth conditions stored in said storing means have satisfiedpredetermined conditions; and display control means (21 in FIG. 9; stepsX16-X20, X8 in FIG. 12) for causing said display means to display theimages of the living thing sequentially from one image showing aninitial growth step to another image showing a next growth step inaccordance with the result of the determination performed by saiddetermining means; wherein said electronic device is portable and isequipped with said display means, said storing means, said time countingmeans, said determining means and said display control means.
 31. Theportable electronic device according to claim 30, wherein:said growthconditions include externally input amounts of growth elements necessaryto grow the living thing; said predetermined conditions are that theamounts of growth elements are larger than predetermined certain valuesand that the time counted by said time counting means has exceeded apredetermined time; and said determining means includes means (stepsX14, X15 in FIG. 12) for determining whether the amounts of growthelements have become larger than said predetermined certain values atthe point when the time counted by said time counting means has exceededsaid predetermined time.
 32. The portable electronic device according toclaim 30, wherein:said display control means includesan internal memory(23 in FIGS. 9, 10), connected to said key input means and said displaymeans in said portable electronic device, for prestoring images of theliving thing each of which shows one of predetermined steps of thegrowth of the living thing, and control means (21 in FIG. 9) forsequentially reading the images of the living thing from said internalmemory and for causing said display means to sequentially display theread images in accordance with growth conditions stored in said internalmemory and in the order of said predetermined steps of the growth of theliving thing.
 33. The portable electronic device according to claim 30,further comprising:data input means (12a, 12b in FIG. 1; steps A1, A2 inFIG. 6) for inputting data; switching means (12c in FIG. 1) forperforming switching between an image display mode (SB in FIG. 5) inwhich the images of the living thing are displayed and a data displaymode (SA in FIG. 5) in which the data input by said data input means isdisplayed; and means (steps B1, B10 in FIG. 7; step A3 in FIG. 6) fordisplaying only the images of the living thing on said display meanswhile said display means is being in the image display mode as a resultof the switching performed by said switching means, and for displayingonly said data on said display means while said display means is in thedata display mode as a result of the switching performed by saidswitching means.
 34. A portable electronic device for sequentiallydisplaying images of a living thing in accordance with growth steps asthough the living thing is growing, said electronic apparatuscomprising:living thing display means (16 in FIG. 1) for displaying theimages of the living thing; growth element display means (16 in FIGS. 1,8B; step B3 in FIG. 7) for displaying, at a time and as a list, growthelements necessary to control the growth of the living thing; selectingmeans (12b in FIGS. 1, 8B; step B4 in FIG. 7) for selecting the growthelements displays as the list on said growth element display means; anddisplay control means (11 in FIG. 1; step B9 in FIG. 7; FIGS. 8A, 8C)for causing said display means to display the images of the living thingsequentially from one image showing an initial growth step to anotherimage showing a next growth step, in accordance with the growth elementsselected by said selecting means; wherein said portable electronicdevice is equipped with said living thing display means, said growthelement display means said selecting means and said display controlmeans.
 35. The portable electronic device according to claim 34,wherein:said growth elements are element images having different shapes;said growth element display means includesan internal memory (13 inFIGS. 1, 2; FIG. 8B) for prestoring said element images, externaloperation means (12d in FIGS. 1, 8B) having a key for being operated bya user, and element image display means (11 in FIG. 1; step B3 in FIG.7; FIG. 8B) for, when the key of said external operation means isoperated, retrieving said element images from said internal memory inresponse to the operation of the key of said external operation meansand for causing the retrieved element images to be displayed at a timeas the list.
 36. The portable electronic device according to claim 34,wherein:said selecting means includes element selecting means (12b inFIGS. 1, 8B, step B4 in FIG. 7) for manually selecting one of the growthelements displayed as the list on said growth element display means; andsaid display control means includes means (11 in FIG. 1; steps B9, B10in FIG. 7; FIGS. 8A, 8C) for causing said living thing display means todisplay the images of the living thing sequentially from one imageshowing the initial growth step to another image showing the next growthstep in accordance with said one growth element selected by said elementselecting means.
 37. The portable electronic device according to claim34, further comprising:data input means (12a, 12b in FIG. 1; steps A1,A2 in FIG. 6) for inputting data; switching means (12c in FIG. 1) forperforming switching between an image display mode (SB in FIG. 5) inwhich the images of the living thing are displayed and a data displaymode (SA in FIG. 5) in which the data input by said data input means isdisplayed; and means (steps B1, B10 in FIG. 7; step A3 in FIG. 6) fordisplaying only the images of the living thing on said display meanswhile said display means is in the image display mode as a result of theswitching performed by said switching means, and for displaying onlysaid data on said display means while said display means is in the datadisplay mode as a result of the switching performed by said switchingmeans.